Hide overlay windows when showing phone account enable/disable screen. am:...

Hide overlay windows when showing phone account enable/disable screen. am: a7d57ace am: 03d32b7e am: fdbbe6bf am: f745f72a

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



Change-Id: I0288a0a2cb9f70b601867f8df4ce71d23b6790fd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>