Add an extra for the Disconnect Headset State.
Add an extra for the Disconnect Headset State.

This extra tells as to who initiated the disconnection.

Bug:2568119
Change-Id: Iea706ad69f79ae0257604dfa84d49126fb851cca

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base