Merge "Update strings for 5G upsell" into udc-dev am: 5e80fbe6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22039290



Change-Id: I3d4e4ba349a044af7b611c6c5497890a36f38ac5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>