Moved all the content of the DDK files ntdef.h and ntddk.h to
winternl.h.

diff --git a/server/registry.c b/server/registry.c
index 29502ac..792750c 100644
--- a/server/registry.c
+++ b/server/registry.c
@@ -45,7 +45,7 @@
 #include "winbase.h"
 #include "winreg.h"
 #include "winnt.h" /* registry definitions */
-#include "ntddk.h"
+#include "winternl.h"
 #include "wine/library.h"
 
 /* a registry key */