Merge "Merge "rename "Emergency Alert" to "Public Warning" per IT...

Merge "Merge "rename "Emergency Alert" to "Public Warning" per IT requirements" into rvc-dev am: 6ebe9ae0 am: 34a3ec22" into rvc-d1-dev-plus-aosp am: 860e6624

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/11814763

Change-Id: I71bce2f3a7ce13456ac990152cc671d5fdebe284