Merge "AudioDeviceBroker: restore use of hearing aids by default for VoIP calls" into udc-dev am: 4e54a895f0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24499047

Change-Id: Ie6c6beb3fa77dee8c6bd5cd53560f8aa6c842088
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>