Don't set TARGET_ENABLE_QC_AV_ENHANCEMENTS for msm8960 devices

Recent updates to frameworks/av require media-caf for this to work

Change-Id: I0bb17ad3cab49d0a35318c63727ace2fa43de59c
proprietary-files: Use Omx*Dec from 4.3 on all msm8960

Change-Id: Ib3c280acde1cf4816f6c686358552d89d2724a33
fsck fake pds prior mounting
overlay: Fix BT and USB tether interface names

Change-Id: I1aa87675b85badcf8cfa90bc4f6fff4e4fd5caa8