Combine 'DTS Sound (TruMedia) Postpro support in frameworks/av for Android 6.0' as a single patch.

Signed-off-by: jinamdar <jaydeep.inamdar@dts.com>
(cherry picked from commit d3668da66643d4cc39058fb65c8db0742748f70f)

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

Issue-Id: SAMBAR-1070
Change-Id: I67e3ba100ff40058919ba827b806aea7bdbaf4bb
(cherry picked from commit 96985edf)