am f8ddf2e5: Merge "Revert "Revert "Gralloc: Support HW_CAMERA_READ/HW_CAMERA_ZSL usage.""" into jb-mr1-dev

* commit 'f8ddf2e53896c46be4171d05579a081a519c5b52':
  Revert "Revert "Gralloc: Support HW_CAMERA_READ/HW_CAMERA_ZSL usage.""