Merge "Update mobile data off string to "Mobile data won't autoconnect"" into sc-qpr1-dev am: 653f7963a0 am: f1f2308a4c

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

Change-Id: I52caa6a0ed5291f798961e4a8d339c116d86a65f