[automerger skipped] Use ensureCellularValidated which request cell am: 881e47a9fe -s ours

am skip reason: Merged-In I0e5f67467d6ef591028225ddb138d8ed5f4fa32a with SHA-1 5443938a41 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/28886192

Change-Id: I225194aa0be548fab2482831e75e41d823363efb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>