Merge PPR1.180516.001

 Conflicts:
	src/com/android/bluetooth/btservice/AdapterState.java
	src/com/android/bluetooth/hfp/HeadsetService.java
	src/com/android/bluetooth/hfp/HeadsetStateMachine.java

Change-Id: I2b19cb539aab734508b6bd552fcdb9fc388a9a62