audio service: set dock use on mediaserver restart
audio service: set dock use on mediaserver restart

Restore forced usage of dock audio for media according to
current setting when media server restarts.

Change-Id: Ie67b80ede1ed92d223dd96de83c1beb985dfba06

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