Merge "AudioDeviceVolumeManager and VolumeInfo API changes" into tm-qpr-dev am: dcb2710560

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20568529

Change-Id: I75590a39b1102b57c9ee834ac9137273e5b88dbf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>