Merge "Clear calling identity before calling createContextAsUser." into udc-qpr-dev am: 9c6e7c75

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/24086377



Change-Id: If211c8e81b010c274e20eb3823e0d3e8a2688e18
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>