Fix security vulnerability when register phone accounts. am: ce3216cb am:...

Fix security vulnerability when register phone accounts. am: ce3216cb am: 39be7283 am: 21110afc

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/20055816



Change-Id: I7db518ff0815dc588da0b44677f1c1be74b0c44f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>