Revert "venc: Set max supported AVC level to OMX_VIDEO_AVCLevel42 on 8916"

- Venus supports decoding at 50Mbps, but only supports encoding at
  20 Mbps.

This reverts commit 42981ed07368d839aa1b87efa2f505fee19f7580.

Change-Id: I1b0f8cadc241f36ba7101748c5dbc12b22e22a10
Revert "mm-video: vidc: vdec: advertise color formats based on usage hint"

 * Causes one frame loss during CTS video perf test.

This reverts commit 4bb0cd7d8c4f3da373984cb8f5e10250755ecc40.

Change-Id: I02bb97b88db7373938ff34458fc8142e2e8e28b3
mm-video-v4l2: vidc: vdec: Fix build without VDEC_CODECTYPE_MVC

Change-Id: I978d82b79482891462dc49a73c700ae792975f68