libmedia: Add flag for non-native FAST tracks.

Change-Id: Ied9004c0bdc6314541b12095ca1defd0f291eb1a
Merge remote-tracking branch 'cm/cm-11.0' into HEAD

Conflicts:
	media/libmedia/Android.mk

Change-Id: I21123a80aedf1bbe2af2f80d9778202d213dd0b7