Import AndroidX from build 9355454

./update_prebuilts.py -x --include androidx.activity 9355454

Change-Id: I0018853d73b85f27f7e5c33277fe8d85ca77bf5b
Merged-In: Ifd466d7aca99e8d91d44b29ce689322d6076fc56
Test: None
35 files changed