Merge "Implement volume control on default audio HAL" into main am: 81d86fcd51

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3291222

Change-Id: I7984cd4599ee8c9d75b2a6336072fc733f533c8b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>