Merge "Fix SF blur to be as blurry as Gaussian blur" into sc-dev am: e78acd5b6a am: 43a39d1852 am: 6ec2aa2e94

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/15164243

Change-Id: I3a3fe12be5228811a12d1d9d6710c219c59a2254