Merge "Fix boot animation alpha multiplication computations" into tm-qpr-dev am: b1b275b0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20414907



Change-Id: I49511900ae3da6f0fd8f30c34e7d964e71bb9892
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>