Merge "Update mobile data off string to "Mobile data won't autoconnect"" into sc-qpr1-dev am: 653f7963a0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15716725

Change-Id: If5f1caa14582f097a1e2a6ea1de8ee6f14730841