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: 5b573b3e am: dc4e3224 am: 1fcdc859 am: e8607801 am: 1494fc0e

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



Change-Id: I579d54d72b6fc7cd4385bc95e259cbc645bf35f3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>