ntdll: add NtSetLdtEntries/ZwSetLdtEntries stub

Fri Apr 29 21:17:42 CDT 2016

On 30.04.2016 02:59, Austin English wrote:
> For https://bugs.winehq.org/show_bug.cgi?id=26268
> 

Looks good to me. Based on various sources I believe that using 2*ULONG is more correct than LDT_ENTRY.
We'll probably never know for sure because on 64-bit, Windows also just returns STATUS_NOT_IMPLEMENTED,
and on 32-bit it doesn't really matter.

Signed-off-by: Sebastian Lackner <sebastian at fds-team.de>