[ARM] Better import of existing switch warnings

src/eeprom_conversions.cpp

@@ -422,6 +422,7 @@ void ConvertModel_215_to_216(ModelData &model)
   }
   g_model.thrTraceSrc = oldModel.thrTraceSrc;
   g_model.switchWarningStates = oldModel.switchWarningStates >> 1;
+  g_model.nSwToWarn = (oldModel.switchWarningStates & 0x01) ? 0xFF : 0;
   for (uint8_t i=0; i<5; i++) {
     memcpy(g_model.gvars[i].name, oldModel.gvar_names[i], LEN_GVAR_NAME);
   }