include/wintrust.h: Add missing members to CRYPT_PROVIDER_DATA struct (fixes some wintrust tests on Windows).

include/wintrust.h

diff --git a/include/wintrust.h b/include/wintrust.h
index 0c4d535..bc1c367 100644
--- a/include/wintrust.h
+++ b/include/wintrust.h
@@ -341,6 +341,8 @@
     HCRYPTMSG                 hMsg;
     DWORD                     csSigners;
     CRYPT_PROVIDER_SGNR      *pasSigners;
+    DWORD                     csProvPrivData;
+    CRYPT_PROVIDER_PRIVDATA  *pasProvPrivData;
     DWORD                     dwSubjectChoice;
     union {
         struct _PROVDATA_SIP        *pPDSip;