Merge "AHAL: support volume control for USB audio HAL." am: 0abca2170b am: d8b77aef82 am: 3c0a057026

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2461293

Change-Id: Ief3a45a4aca47fdfab780a80e03480a4de019eef
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>