[automerger] Revert "mm-video-v4l2: Protect buffer access and increase input...

[automerger] Revert "mm-video-v4l2: Protect buffer access and increase input buffer size" am: e1dfe8f5 am: f8f1a5f6 am: d43877ac skipped: d4481934 am: 7240438e am: 7f08f162 am: 2fd221eb am: e071682a

Change-Id: I7a424d6e494f88d1378ec37202cbee0b0cc54f9f