Merge "Revert "Mainline: removed legacy UI for network selection mode."" into...

Merge "Revert "Mainline: removed legacy UI for network selection mode."" into rvc-dev am: 518ffd7c am: 58d36c2d am: fcd06773 am: 859d08c7

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/11837795

Change-Id: I6c81b7744bc55e6f1e4ac0350c15f6036c7dac12