Import AndroidX from build 8440945 am: e822e387d0 am: 71aae6b96a

Original change: https://googleplex-android-review.googlesource.com/c/platform/prebuilts/sdk/+/17730068

Change-Id: I5e00c6830abdf2400ff20cff2d042b1d3be2f444
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>