Merge "CameraITS: use linear tonemap in test_exposure" into lollipop-mr1-cts-dev am: 37ece1e93c am: f4cda1d27f
am: 40385a32b6

* commit '40385a32b6e16cb76d76104a28a9242319a12b5f':
  CameraITS: use linear tonemap in test_exposure