drivers: fix camera for jb_mr2

 * Prior to 4.3 TARGET_DISABLE_ARM_PIE fixed our camera issues
 which causes builds to not boot with 4.3. This fixes the camera
 without the need for TARGET_DISABLE_ARM_PIE

Change-Id: I39bfc3b669c4fb490454f5890df9e1ab16ed3fd0
drivers: more fixes for camera

Commented out a few lines Nick missed, adapted from msm8660 kernel

Change-Id: I1577b591fa4484a9537c6f307eb02d462cac240f