Show W+ when connected to Carrier Wi-Fi Network

 Internet picker
  - https://screenshot.googleplex.com/7k4ojF65a8Bis5R
 Internet panel
  - https://hsv.googleplex.com/6749112168873984
Bug: 185431894
Test: atest passed

Change-Id: Ic79686b47f033870ad8e7741f9baf3230dde7b7c
4 files changed