Fixed the crash that would occur when the Refresh button was pressed in the controllers config.

- Simplified the locking mechanism when controllers were updated
- Reloaded the config of the controls instead of re-initialising the control plugins
- Fixed controls being unresponsive after the Refresh button was pressed
- Disables the hotkeys while the controller config is open

Source/Core/Core/HW/GCKeyboard.h

@@ -13,6 +13,7 @@ namespace Keyboard
 
 void Shutdown();
 void Initialize(void* const hwnd);
+void LoadConfig();
 
 InputConfig* GetConfig();