Import AndroidX from build 6620107 am: fc320900aa am: 58dfc10b0a am: 065e20266a am: 671abef06f

Original change: https://googleplex-android-review.googlesource.com/c/platform/prebuilts/sdk/+/11970316

Change-Id: Idff62e647225aa76c1aa4ef542323bd2b6ace1c4