Vulkan validation layer error when running latest

[Zhaeong]

With latest when running it locally I'm getting:

./amber
[ERROR] validation layer (Validation):
Validation Error: [ VUID-VkDeviceCreateInfo-pNext-pNext ] Object 0: handle = 0x5e4978bc0d30, type = VK_OBJECT_TYPE_INSTANCE; | MessageID = 0x901f59ec | vkCreateDevice(): pCreateInfo->pNext<VkPhysicalDeviceShaderFloat16Int8Features> includes a pointer to a VkPhysicalDeviceShaderFloat16Int8Features, but when creating VkDevice, the parent extension (VK_KHR_shader_float16_int8) was not included in ppEnabledExtensionNames.
The Vulkan spec states: Each pNext member of any structure (including this one) in the pNext chain must be either NULL or a pointer to a valid struct for extending VkDeviceCreateInfo (https://vulkan.lunarg.com/doc/view/1.3.296.0/linux/1.3-extensions/vkspec.html#VUID-VkDeviceCreateInfo-pNext-pNext)
[ERROR] validation layer (Validation):
Validation Error: [ VUID-VkDeviceCreateInfo-pNext-pNext ] Object 0: handle = 0x5e4978bc0d30, type = VK_OBJECT_TYPE_INSTANCE; | MessageID = 0x901f59ec | vkCreateDevice(): pCreateInfo->pNext<VkPhysicalDevice8BitStorageFeatures> includes a pointer to a VkPhysicalDevice8BitStorageFeatures, but when creating VkDevice, the parent extension (VK_KHR_8bit_storage) was not included in ppEnabledExtensionNames.
The Vulkan spec states: Each pNext member of any structure (including this one) in the pNext chain must be either NULL or a pointer to a valid struct for extending VkDeviceCreateInfo (https://vulkan.lunarg.com/doc/view/1.3.296.0/linux/1.3-extensions/vkspec.html#VUID-VkDeviceCreateInfo-pNext-pNext)
[ERROR] validation layer (Validation):
Validation Error: [ VUID-VkDeviceCreateInfo-pNext-pNext ] Object 0: handle = 0x5e4978bc0d30, type = VK_OBJECT_TYPE_INSTANCE; | MessageID = 0x901f59ec | vkCreateDevice(): pCreateInfo->pNext<VkPhysicalDeviceBufferDeviceAddressFeatures> includes a pointer to a VkPhysicalDeviceBufferDeviceAddressFeatures, but when creating VkDevice, the parent extension (VK_KHR_buffer_device_address) was not included in ppEnabledExtensionNames.
The Vulkan spec states: Each pNext member of any structure (including this one) in the pNext chain must be either NULL or a pointer to a valid struct for extending VkDeviceCreateInfo (https://vulkan.lunarg.com/doc/view/1.3.296.0/linux/1.3-extensions/vkspec.html#VUID-VkDeviceCreateInfo-pNext-pNext)

Summary: 0 pass, 0 fail

It seems to require adding these lines:
exts.push_back(VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME);
exts.push_back(VK_KHR_8BIT_STORAGE_EXTENSION_NAME);
exts.push_back(VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME);

to this line prior to vulkan device creation:
https://github.com/google/amber/blob/main/samples/config_helper_vulkan.cc#L1216

[Flakebi]

This is a regression. I bisected it to #1050 from @petermcneeleychromium

[petermcneeleychromium]

I suspect the change is actually correct it just has knock on behaviors.
I can take ownership of this issue for now.