Merge "Fix boot animation alpha multiplication computations" into tm-qpr-dev am: b1b275b032 am: 03a7f370bc

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

Change-Id: Ib65162c7a87d213f592ffcfb3286e263bf6cce0c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>