wined3d: Report the correct number of available 4-component float vectors for GLSL

[H. Verbeet]

On 04/10/06, Mirek <thunder.m at czela.net> wrote:
> Here is the log, without this patch i have with new nVidia driver only 4
> GL_MAX_TEXTURE_UNITS_ARB and some apps have big regression. I realy dont
> know why, i am not expert in wine or directx, but now it is working.
The old drivers only had 4 GL_MAX_TEXTURE_UNITS_ARB as well. Also,
that's not the entire extension detection log.