Merge "UpdateAbility: Implement BluetoothInCallService and its test. Besides atest, also manually tested hfp." am: 2f68fa280c

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Bluetooth/+/1311861

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I449f7100b60cef5d7f509409811c56ba2792bffd