Merge "Fade in the UDFPS icon from HOME => AOD" into tm-dev am: 0c7f85a13b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16979579

Change-Id: I5b02e9fe0f8aea4bca6d76b99a6386e020741dd4