AVCustomizations: Enable 16 and 24 bit PCM offload.

 -create extended decoder and renderer
 -add change to pass bit width and format info to renderer.
 -add change for PCM conversions
 -add changes for time calucation

Conflicts:
	media/libmediaplayerservice/nuplayer/NuPlayer.cpp

Change-Id: I3363140fad441a7746884076c40b46e777f2e06e