secur32: Make AcceptSecurityContext behaviour consistent withWindows.

[Dmitry Timoshkov]

"Kai Blin" <kai.blin at gmail.com> wrote:

>          phNewContext->dwUpper = ctxt_attr;
> -        phNewContext->dwLower = ret;
> +        phNewContext->dwLower = (DWORD)helper;

You need to cast to ULONG_PTR to make the code 64-bit safe.
Also please fix (DWORD)helper casts in other places.

-- 
Dmitry.