Fix RemoteControlStackEntry constructor in AudioService
Fix RemoteControlStackEntry constructor in AudioService

Add missing call to constructor of RccPlaybackState to initialize
 the mPlaybackState field of the RemoteControlStackEntry class.

bug 8512601

Change-Id: I636d5c1b416d6a3d3808d5be53c9c544ab293732

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