Merge "bootanimation: ensure that if a percent is shown, we'll get to 100." am: 87c254de0e am: 10e844df41 am: 55b2ba298c

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1681127

Change-Id: I1ee402945af4207affb77d61eb76a21c175ac1fc