am ea7a061c: am f8ddf2e5: Merge "Revert "Revert "Gralloc: Support HW_CAMERA_READ/HW_CAMERA_ZSL usage.""" into jb-mr1-dev

* commit 'ea7a061c9cec052765a2ecc0366f55249f36bc38':
  Revert "Revert "Gralloc: Support HW_CAMERA_READ/HW_CAMERA_ZSL usage.""