Merge "UpdateAbility: Implement BluetoothInCallService and its test. Besides atest, also manually tested hfp." am: 2f68fa280c am: 6ba4a01f8d

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I089f21aa6ec91ca6c0db51ef6ead7f745a7666cd