Fix race condition in data network am: 60627011 am: cd2963bc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/17773765



Change-Id: I13e3c012b9e8b2f55545104ce23a16959a59c700
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>