message: Fix SINGLE_FLUSH_VALIDATE crash with no queue/device available
diff: @@ -353,9 +353,10 @@ void WrappedVulkan::FlushQ()
  }
  #if ENABLED(SINGLE_FLUSH_VALIDATE)
  + if(m_Device != VK_NULL_HANDLE)
  {
  - ObjDisp(m_Queue)->DeviceWaitIdle(Unwrap(m_Device));
  - VkResult vkr = ObjDisp(m_Queue)->DeviceWaitIdle(Unwrap(m_Device));
  + ObjDisp(m_Device)->DeviceWaitIdle(Unwrap(m_Device));
  + VkResult vkr = ObjDisp(m_Device)->DeviceWaitIdle(Unwrap(m_Device));
  RDCASSERTEQUAL(vkr, VK_SUCCESS);
  }
  #endif
  