Hide overlay windows when showing phone account enable/disable screen. am: a7d57ace58 am: 03d32b7ee6 am: fdbbe6bf70 am: f745f72a03 am: 46a616d207 am: 16efae2fd5 am: 9189ed2217

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/20069028

Change-Id: I92b1cfb1b2f9b9e18a111c02a4ed74b373f37094
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>