Merge "HFPClient: Support HF Indicators" am: bd03687d2e am: 6213623b11 am: 178af25518

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Bluetooth/+/1536565

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I31b645633c4a4c59cdfcaa4464a782c18eda34ac