Merge "AudioService: prevent unmute on vol raise when muted by ringer/zen"...

Merge "AudioService: prevent unmute on vol raise when muted by ringer/zen" into udc-dev am: 3bd9c629 am: 9efc1aa7 am: cee0e58b am: 421bca8d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23558219



Change-Id: I82061bcb453ef5191ce9248170dc5e653d5bfb5c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>