Vulkan: Only use oldSwapchain in response to VK_ERROR_OUT_OF_DATE_KHR

Seems to be required on the latest NV driver, otherwise the presented
images are never shown.

Source/Core/VideoBackends/Vulkan/SwapChain.h

@@ -55,6 +55,7 @@ public:
 
   bool RecreateSurface(void* native_handle);
   bool ResizeSwapChain();
+  bool RecreateSwapChain();
 
   // Change vsync enabled state. This may fail as it causes a swapchain recreation.
   bool SetVSync(bool enabled);