Merge "stagefright: add new Dolby Vision Levels" am: 5fcf997483 am: 8ca1d4838d am: d01852fe85

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1962287

Change-Id: Ia64c6aa35ecabafc41e8c8fbf72f686df1482f0d