zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/mdc2/mdc2_one.c b/ap/lib/libssl/openssl-1.1.1o/crypto/mdc2/mdc2_one.c
new file mode 100644
index 0000000..58e1e0f
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/mdc2/mdc2_one.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/mdc2.h>
+
+unsigned char *MDC2(const unsigned char *d, size_t n, unsigned char *md)
+{
+    MDC2_CTX c;
+    static unsigned char m[MDC2_DIGEST_LENGTH];
+
+    if (md == NULL)
+        md = m;
+    if (!MDC2_Init(&c))
+        return NULL;
+    MDC2_Update(&c, d, n);
+    MDC2_Final(md, &c);
+    OPENSSL_cleanse(&c, sizeof(c)); /* security consideration */
+    return md;
+}