msm8974: Merge changes to Samsung DT

Change-Id: Ie8dc7c2e1b796ce77007b4ef429f2be291622a77
camera: Freeze camera headers for H

 * Prevent merge issues and userspace breakage.
 * Also delete unused bits from H driver

Change-Id: Ie8aeab039395ceb6586612dc89b9b25ec31ad65c