doc: releases: unite disjoint bluetooth sections for v3.1.0

For some reason, there are two different sections covering bluetooth.
This is clearly incorrect; fix it by moving the content into a single
section.

Signed-off-by: Martí Bolívar <[email protected]>

Author: mbolivar-nordic

doc/releases/release-notes-3.1.rst

@@ -313,6 +313,46 @@ New APIs in this release
 Bluetooth
 *********
 
+* Extended and Periodic advertising are no longer experimental
+* Direction Finding is no longer experimental
+* Added support for disabling Bluetooth, including a new ``bt_disable()`` API
+  call
+
+* Audio
+
+  * Changed the implementation of PACS to indicate instead of notifying
+  * Added support for the Broadcast Audio Scan Service (BASS)
+  * Added support for the Hearing Access Service (HAS)
+  * Added support for the Telephone Bearer Service (TBS)
+
+* Direction Finding
+
+  * Added sampling and switching offset configuration
+
+* Mesh
+
+  * Added support for Proxy Client
+  * Added support for Provisioners over PB-GATT
+  * Added a new heartbeat publication callback option
+
+* Controller
+
+  * Added support for the full ISO TX data path, including ISOAL
+  * Added support for ISO Broadcast Channel Map Update
+  * Added support for ISO Synchronized Receiver Channel Map Update
+  * The new implementation of LL Control Procedures is now the default whenever
+    Direction Finding is enabled
+  * Added support for all missing v3 and v4 DTM commands
+  * Implemented ISO-AL TX unframed fragmentation
+  * Added support for back-to-back receiving of PDUs on nRF5x platforms
+  * Increased the maximum number of simultaneous connections to 250
+
+* HCI Driver
+
+  * Added support for a new optional :c:member:`bt_hci_driver.close` API which
+    closes HCI transport.
+  * Implemented :c:member:`bt_hci_driver.close` on stm32wb HCI driver.
+
 * Host
 
   * The :c:enum:`bt_l2cap_chan_state` values ``BT_L2CAP_CONNECT`` and
@@ -331,6 +371,44 @@ Bluetooth
 
   * :c:func:`bt_disable` was added to enable the caller to disable the Bluetooth stack.
 
+  * Added new Kconfig options to select ISO Central and Peripheral role support
+    separately
+
+  * Added a new :c:func:`bt_get_appearance()` API call
+
+  * Implemented support for dynamic appearance, including a new
+    :c:func:`bt_set_appearance()` API call
+
+  * Implemented support for L2CAP collision mitigation
+
+  * Changed the scheduling of auto-initiated HCI commands so that they execute
+    synchronously
+
+  * Added a new :c:func:`bt_is_ready()` API call to find out if Bluetooth is
+    currently enabled and initialized
+
+  * Added support for automatic MTU exchange right after a connection is
+    established
+
+  * Created a new :c:struct:`bt_conn_auth_info_cb` to group the
+    security-related callbacks under a single struct
+
+  * Optimized the memory usage of the Object Transfer Service
+
+  * Added a new :c:func:`bt_hci_le_rand()` API call to obtain a random number
+    from the LE Controller
+
+  * Added a new public API to connect EATT channels, :c:func:`bt_eatt_connect()`
+
+  * Optimized L2CAP channels resource usage when not using dynamic channels
+
+  * Added the ability to run the Bluetooth RX context from a workqueue, in order
+    to optimize RAM usage. See :kconfig:option:`CONFIG_BT_RECV_CONTEXT`.
+
+  * Added support for TX complete callback on EATT channels
+
+  * Corrected the calling of the MTU callback to happen on any reconfiguration
+
 Kernel
 ******
 
@@ -394,75 +472,6 @@ Architectures
     API as a printk/logging backend, simplifying platform bringup on
     devices without known-working serial port configurations.
 
-Bluetooth
-*********
-
-* Extended and Periodic advertising are no longer experimental
-* Direction Finding is no longer experimental
-* Added support for disabling Bluetooth, including a new ``bt_disable()`` API
-  call
-
-* Audio
-
-  * Changed the implementation of PACS to indicate instead of notifying
-  * Added support for the Broadcast Audio Scan Service (BASS)
-  * Added support for the Hearing Access Service (HAS)
-  * Added support for the Telephone Bearer Service (TBS)
-
-* Direction Finding
-
-  * Added sampling and switching offset configuration
-
-* Host
-
-  * Added new Kconfig options to select ISO Central and Peripheral role support
-    separately
-  * Added a new :c:func:`bt_get_appearance()` API call
-  * Implemented support for dynamic appearance, including a new
-    :c:func:`bt_set_appearance()` API call
-  * Implemented support for L2CAP collision mitigation
-  * Changed the scheduling of auto-initiated HCI commands so that they execute
-    synchronously
-  * Added a new :c:func:`bt_is_ready()` API call to find out if Bluetooth is
-    currently enabled and initialized
-  * Added support for automatic MTU exchange right after a connection is
-    established
-  * Created a new :c:struct:`bt_conn_auth_info_cb` to group the
-    security-related callbacks under a single struct
-  * Optimized the memory usage of the Object Transfer Service
-  * Added a new :c:func:`bt_hci_le_rand()` API call to obtain a random number
-    from the LE Controller
-  * Added a new public API to connect EATT channels, :c:func:`bt_eatt_connect()`
-  * Optimized L2CAP channels resource usage when not using dynamic channels
-  * Added the ability to run the Bluetooth RX context from a workqueue, in order
-    to optimize RAM usage. See :kconfig:option:`CONFIG_BT_RECV_CONTEXT`.
-  * Added support for TX complete callback on EATT channels
-  * Corrected the calling of the MTU callback to happen on any reconfiguration
-
-* Mesh
-
-  * Added support for Proxy Client
-  * Added support for Provisioners over PB-GATT
-  * Added a new heartbeat publication callback option
-
-* Controller
-
-  * Added support for the full ISO TX data path, including ISOAL
-  * Added support for ISO Broadcast Channel Map Update
-  * Added support for ISO Synchronized Receiver Channel Map Update
-  * The new implementation of LL Control Procedures is now the default whenever
-    Direction Finding is enabled
-  * Added support for all missing v3 and v4 DTM commands
-  * Implemented ISO-AL TX unframed fragmentation
-  * Added support for back-to-back receiving of PDUs on nRF5x platforms
-  * Increased the maximum number of simultaneous connections to 250
-
-* HCI Driver
-
-  * Added support for a new optional :c:member:`bt_hci_driver.close` API which
-    closes HCI transport.
-  * Implemented :c:member:`bt_hci_driver.close` on stm32wb HCI driver.
-
 Boards & SoC Support
 ********************