ddraw: modify Direct3D device name

[Stefan Dösinger]

> Descent FreeSpace: The Great War and Descent FreeSpace 2 fail to detect
> hardware acceleration through Direct3D when enumerating devices, they
> expect the device name string to begin with "Direct3D - "
> 
> This patch enables the Direct3D mode to be used.
I am not entirely sure about this. I think there were other apps(Quicktime?)
which depend on some other name.

I think the best is to see which name Windows uses, make ddraw.dll read the
name from WineD3D, and make WineD3D return the same name Windows does for
the detected card.