Merge "leaudio: Add support for Mute/Unmute" into tm-dev am: e24befa1 am: 5d2019a5

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



Change-Id: Idcd045037390bb53f02058e2934652db9ca7adae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>