tls: enable TLS OpenSSL plugin works in 3.0.0

Type: fix

Change-Id: Id1602981fcc6efed1b0efe79a1fc8177457acdb5
Signed-off-by: Yu Ping <ping.yu@intel.com>
(cherry picked from commit 1c6486f7b8a00a1358d5c8f4ea1d874073bbcd6c)

src/plugins/tlsopenssl/tls_openssl.c

@@ -832,7 +832,12 @@ tls_init_ca_chain (void)
       return -1;
     }
 
+#if OPENSSL_VERSION_NUMBER >= 0x30000000L
+  rv = X509_STORE_load_file (om->cert_store, tm->ca_cert_path);
+#else
   rv = X509_STORE_load_locations (om->cert_store, tm->ca_cert_path, 0);
+#endif
+
   if (rv < 0)
     {
       clib_warning ("failed to load ca certificate");