Settings: add HEADSET_CONNECT_PLAYER key

Change-Id: I1250d44fdde7f6d508ac6e49c4c6bb85c9f66233

Conflicts:
	core/java/android/provider/Settings.java

Change-Id: I1250d44fdde7f6d508ac6e49c4c6bb85c9f66233
Merge "Settings: add HEADSET_CONNECT_PLAYER key" into illusion-4.4