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

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

Change-Id: I98f629f4074bd3a02c00ea920572a87eea1d456c