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 am: 0380e807 am: dd1a1236

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



Change-Id: I1c8df93ef3fea54840605bef0b154679af3694a9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>