modules: mbedtls: increase heap memory for OpenThread

Increase heap memory when OpenThread is enabled and either "commissioner"
or "joiner" roles are used.

Signed-off-by: Valerio Setti <[email protected]>

Author: valeriosetti

modules/mbedtls/Kconfig

@@ -192,7 +192,7 @@ if MBEDTLS_ENABLE_HEAP
 
 config MBEDTLS_HEAP_SIZE
 	int "Heap size for mbed TLS"
-	default 10240 if OPENTHREAD_COMMISSIONER || OPENTHREAD_JOINER
+	default 15360 if OPENTHREAD_COMMISSIONER || OPENTHREAD_JOINER
 	default 1024 if OPENTHREAD_CRYPTO_PSA
 	default 512
 	help