Merge "AudioService: properties for configuring ring/notif steps/default vol"...

Merge "AudioService: properties for configuring ring/notif steps/default vol" into tm-qpr-dev am: fc1f09ff

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19606525



Change-Id: I208da962f61bd766a7dd43fdd0688506d30b8b22
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>