wintrust: Add missing packing directives to mscat.h.

include/mscat.h

diff --git a/include/mscat.h b/include/mscat.h
index 6f9ad61..f7a739a 100644
--- a/include/mscat.h
+++ b/include/mscat.h
@@ -28,6 +28,9 @@
 extern "C" {
 #endif
 
+
+#include <pshpack8.h>
+
 typedef struct CRYPTCATMEMBER_ {
     DWORD cbStruct;
     LPWSTR pwszReferenceTag;
@@ -42,6 +45,9 @@
     CRYPT_ATTR_BLOB sEncodedMemberInfo;
 } CRYPTCATMEMBER;
 
+#include <poppack.h>
+
+
 BOOL      WINAPI CryptCATAdminAcquireContext(HCATADMIN*,const GUID*,DWORD);
 BOOL      WINAPI CryptCATAdminCalcHashFromFileHandle(HANDLE,DWORD*,BYTE*,DWORD);
 HCATINFO  WINAPI CryptCATAdminEnumCatalogFromHash(HCATADMIN,BYTE*,DWORD,DWORD,HCATINFO*);