Import AndroidX from build 6616358 am: d5008a161c am: d224926299 am: f8ddaf4079 am: 7816608571

Original change: https://googleplex-android-review.googlesource.com/c/platform/prebuilts/sdk/+/11959994

Change-Id: I7309fc8eafff5dba5819a0456f4b6f831883a5bb