ControllerInterface: replace Reinitialize with RefreshDevices

The SDL backend crashes when you close a joystick after SDL_Quit has
been called. Some backends don't need to be shutdown and
re-initialized everytime, we can just ask to enumerate devices again.

Source/Core/InputCommon/ControllerInterface/ControllerInterface.h

@@ -116,7 +116,7 @@ public:
 
   ControllerInterface() : m_is_init(false), m_hwnd(nullptr) {}
   void Initialize(void* const hwnd);
-  void Reinitialize();
+  void RefreshDevices();
   void Shutdown();
   void AddDevice(std::shared_ptr<ciface::Core::Device> device);
   void RemoveDevice(std::function<bool(const ciface::Core::Device*)> callback);