Merge "SF: Set dirty region bit if transparent region hint changes" into sc-dev am: 5b20104681 am: 48f65b791d am: 8401dea7ed

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/15240432

Change-Id: I53eb51f26e10f897a14d2c01c7c0f6ce2df200cd