Merge "Use floating point volume in mixer for mute checking" into udc-dev am:...

Merge "Use floating point volume in mixer for mute checking" into udc-dev am: 20d86c24 am: 224c3be2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23639388



Change-Id: Iec69f9581d2180f7b01b314777e531763092c09c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>