Change ResolverActivity base class to FragmentActivity am: 93d10c4ef2

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/IntentResolver/+/20122875

Change-Id: I692d2c8669776dc85c4b1ee620e624ded56d7b9f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>