DolphinWX: fix input bitmaps not working when background input is off

Source/Core/InputCommon/ControlReference/ControlReference.cpp

@@ -17,7 +17,8 @@ constexpr ControlState INPUT_DETECT_THRESHOLD = 0.55;
 
 bool ControlReference::InputGateOn()
 {
-  return SConfig::GetInstance().m_BackgroundInput || Host_RendererHasFocus();
+  return SConfig::GetInstance().m_BackgroundInput || Host_RendererHasFocus() ||
+         Host_UINeedsControllerState();
 }
 
 //