fix bug when CUSTOM is chosen as board profile

Author: proddy

src/WebSettingsService.cpp

@@ -69,7 +69,9 @@ StateUpdateResult WebSettings::update(JsonObject & root, WebSettings & settings)
     std::vector<uint8_t> data; // led, dallas, rx, tx, button
     if (!System::load_board_profile(data, settings.board_profile.c_str())) {
         // invalid board configuration, override the default in case it has been misspelled
-        settings.board_profile = "S32";
+        if (!settings.board_profile.equals("CUSTOM")) {
+            settings.board_profile = "S32";
+        }
     }
     uint8_t default_led_gpio     = data[0];
     uint8_t default_dallas_gpio  = data[1];