include: Fix definition of FILE_DISPOSITION_INFO.

[Nikolay Sivov]

On 09.06.2015 10:09, Sebastian Lackner wrote:
> A member called DeleteFile cannot be accessed because its defined as
> DeleteFile_must_be_suffixed_with_W_or_A_in_this_context.
>
> ---
>   include/winbase.h | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>

This is how it's defined in SDK though, I don't think you can change that.