[automerger skipped] Merge "Add error code for BluetoothDevice#getBatteryLevel to represent Bluetooth is off" into rvc-dev am: 23ad582c18 -s ours

am skip reason: Change-Id I07c2fa49954632da6aa6a93706883e4cdfd32fa6 with SHA-1 ded588641b is in history

Change-Id: I885e370cd7f3f0c63bca522d655a15342dc5f55a