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 am: 46a616d2 am: 16efae2f am: 9189ed22 am: 513cce6b

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



Change-Id: Iee903f63a64a50b23bfc65d9a674db3533d13529
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>