ui: display actual fingerprint name with auto-fingerprint (#908)

* use platform directly

* Revert "use platform directly"

This reverts commit b71c315d308a5f8f7cd2091de9ce405fcc51074d.

* update brand from platform package

selfdrive/ui/sunnypilot/qt/offroad/settings/vehicle/platform_selector.cc

@@ -72,7 +72,6 @@ void PlatformSelector::refresh(bool _offroad) {
 
       for (auto it = platforms.constBegin(); it != platforms.constEnd(); ++it) {
         if (it.value()["platform"].toString() == platform) {
-          platform = it.key();
           brand = it.value()["brand"].toString();
           break;
         }