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

diff --git a/loader/module.c b/loader/module.c
index 854802c..41119f5 100644
--- a/loader/module.c
+++ b/loader/module.c
@@ -32,6 +32,7 @@
 #endif
 #include "wine/winbase16.h"
 #include "winerror.h"
+#include "winternl.h"
 #include "heap.h"
 #include "file.h"
 #include "module.h"