AudioPolicyService
frameworks_av: Support pre-KitKat audio blobs

Patch Set 2: Combined duplicated method

Change-Id: I6384c13b0944a25cdf0cb90031b2e3698bc3e78d
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

Conflicts:
	services/audioflinger/AudioFlinger.cpp
	services/audioflinger/AudioFlinger.h