Merge "update fallback logic to use cached country" into udc-dev am: 92454b53

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/23296068



Change-Id: I8670b6adb63cdeb217013171ff151dd22eb0053e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>