Merge changes If888f060,I6924d3e1,I8290fe89 into main

* changes:
  [SB][Wifi] Rename WifiRepositoryViaTrackerLib to WifiRepositoryImpl.
  [SB][Wifi] Remove WIFI_TRACKER_LIB_FOR_WIFI_ICON flag and old repo.
  [SB][Wifi] Update tests to use new trackerlib repo instead of old repo.