[ddraw/tests] Fix a test on W2K3

[Henri Verbeet]

2008/11/4 Paul Vriens <paul.vriens.wine at gmail.com>:
> Hi,
>
> I upgraded to VMware 6.5.0 this morning and overlay tests are run now on my
> W2K3
> box. As the return value indicates E_NOTIMPL I decided to add a skip() for
> one particular test.
>
VMware is not a valid test platform for ddraw.