add changes to build falcon

Change-Id: I686195d8db6d9dfddc7204bbda14e2ea0a0f63ea

Conflicts:
	include/media/stagefright/MediaSource.h
	include/media/stagefright/OMXCodec.h
	media/libmedia/AudioTrack.cpp
	media/libstagefright/ACodec.cpp
	media/libstagefright/CameraSource.cpp
	media/libstagefright/ExtendedCodec.cpp
	media/libstagefright/MPEG4Writer.cpp
	media/libstagefright/MediaCodecList.cpp
	media/libstagefright/OMXCodec.cpp