Merge "[sf] Fix blur alpha for new sf frontend" into udc-dev am: 82b28565 am: 884e5ab1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22578934



Change-Id: If2b5f3a8f1cab57d92b10fb79d08ef19654c71e6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>