VMManager: Reload settings after shutting down

Prevents any whacky settings from the previous game hanging around until
the next one boots.

pcsx2/VMManager.cpp

@@ -1318,6 +1318,9 @@ void VMManager::Shutdown(bool save_resume_state)
 	FullscreenUI::OnVMDestroyed();
 	UpdateInhibitScreensaver(false);
 	Host::OnVMDestroyed();
+
+	// clear out any potentially-incorrect settings from the last game
+	LoadSettings();
 }
 
 void VMManager::Reset()