CryptoPkg/CrtLibSupport: add fcntl.h

Add fcntl.h header file.
Will be needed by openssl 3.0.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>

CryptoPkg/Library/Include/fcntl.h

@@ -0,0 +1,9 @@
+/** @file
+  Include file to support building the third-party cryptographic library.
+
+Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <CrtLibSupport.h>