Merge "leaudio: Add support for Mute/Unmute" into tm-dev am: e24befa1 am: 9d21df10

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/18283622



Change-Id: I493f69f9bd1d525d9cc399499c4b5d1b6b3f54e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>