Revert "qcom-common: Enable use of FFMPEG codecs for extended formats"

Not in Omni.

This reverts commit 1315d4b1125ac4ac198ead35bce4b3fdec577d01.
Qcom-common: Use QCom PowerHAL instead of CM
qcom-common: Add in missing ISO values for camera overlay

Omni doesn't have ISO support in the camera app yet. Do this to satisfy build for now.