Have AlphaUpdateListener update visibility in onAnimationEnd() am: 26ab4621ce am: d2f84ec857

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14882859

Change-Id: I6f8587f9091dafb9d6baf5b0982ee8d120cfd0ed