Merge "Update "Mobile network standby" attribute label into "Mobile network"" into sc-v2-dev am: c425a4ae93 am: 8e9b44ea7d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/16182698

Change-Id: I2b01076c97aad16df7ed6576a1b13cbfc6c23bd1