Merge "AudioDeviceBroker: restore use of hearing aids by default for VoIP calls" into udc-qpr-dev am: f9f3eead35

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24481987

Change-Id: I7334c5215f9a914a0c0fa641d3f275a34a8ccce3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>