Merge "Add WiFi Calling overlays for T-Mobile\'s MCCMNCs" into mnc-dr1.5-dev am: 9ae30e69ad am: fba6bccff5
am: e737a028b1

* commit 'e737a028b1b1151d43e3ecceb1b2bb10e0c75665':
  Add WiFi Calling overlays for T-Mobile's MCCMNCs