In order to reduce the complexity, LE audio offload couldn't be
enabled as a2dp offload disabled. Remove the combination from the
developer option
1. As a2dp offload disabled, LE audio offload couldn't be switched.
2. As the user disable a2dp offload, LE audio offload would be disabled
as well
Bug: 238268927
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothLeAudioHwOffloadPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothA2dpHwOffloadPreferenceControllerTest
Change-Id: I9ebe26c6a8058798ea654523ad1405a8447268b8
Add a switcher to enable/disable LE audio feature. The switcher could be
enabled by setprop ro.bluetooth.leaudio_offload.supported=true
screenshot: https://screenshot.googleplex.com/6aGP664S9PX5EMS
Bug: 233018305
Bug: 233005340
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothLeAudioPreferenceControllerTest
Test: switch LE audio feature, and check LE audio functionality status
Change-Id: I8adcf27edd1438df445d32fca93f35ff5020a3b3
