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

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



Change-Id: I035fddb064300fe15848bfcc96082637dd473363
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>