Fix Video Recording Sound Format.

Fix the bug where Sound from video camera apps is recorded as mono instead of stereo.

Change-Id: I99e2dfc68413e2b6cad764f0d468f37830de54b5
hlte: Disable offloaded audio for AV playback

 * Too much for this poor guy. Disable the feature.

Change-Id: I4865e7a1fa9792c799679b36f9048f54e714cf84
OMNI-ify