AudioPolicyService: Support MR1 audio_policy

Change-Id: I26abd352f327256856021b311efb1e23b46b6023

Conflicts:
	services/audioflinger/AudioPolicyService.cpp
STE Audio Fix [1/4]

Credits:
- @Paul-L for implementation
- @percy-g2 for porting to Xperia 2012 devices

Conflicts:
	media/libmedia/IAudioFlinger.cpp
	services/audioflinger/AudioFlinger.h