Merge "Apply Assistant AudioPolicy to HotwordDetectionService" into sc-dev am: 0c1ce4efc5 am: fdd9360ca0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/15464022

Change-Id: I9de8624687bc9de2bdf72e44522e944a19049823