[2/2] WineD3D: Make the srgb write flag bigger

[Stefan Dösinger]

> You should add a note to the source about this. Or someone might change
> the
> size of this structure and the old bug will return.
That's probably a good idea
 
> However the best way to fix this problem would be to pack this
> structure:
> 
> #include <pshpack1.h>
> struct ffp_settings {
> ...
> };
> #include <poppack.h>
Is this portable?