aosp aidl bluetooth audio hal implementation am: b03b5c4a06 am: 412aafd1eb

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2624193

Change-Id: I1ef6b0bed47715b290487d46dcb5adc7d7899a45
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>