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

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



Change-Id: I9c8da2f55fb27f7075e9e79251f0508d60b87757
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>