VideoCommon: Call Renderer::SurfaceChanged on render parent resize

This is needed because for some reason the WSI for NV Vulkan drivers
doesn't return VK_ERROR_OUT_OF_DATE_KHR, so there is no other way to know
that a resize has occured apart from polling, which is a poor solution for
X11 (since it is blocking).

Source/Core/VideoBackends/OGL/Render.h

@@ -105,6 +105,8 @@ public:
 
   int GetMaxTextureSize() override;
 
+  void ChangeSurface(void* new_surface_handle) override;
+
 private:
   void UpdateEFBCache(EFBAccessType type, u32 cacheRectIdx, const EFBRectangle& efbPixelRc,
                       const TargetRectangle& targetPixelRc, const void* data);