Reverse the cert file

Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 6bf333f..d43d662 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -78,7 +78,7 @@
 fi
 
 if [ -n "${OPENSSL_NEXT:-}" ]; then
-    O_NEXT_SRV="$OPENSSL_NEXT s_server -www -cert data_files/server7.crt -key data_files/server7.key"
+    O_NEXT_SRV="$OPENSSL_NEXT s_server -www -cert data_files/server5.crt -key data_files/server5.key"
     O_NEXT_SRV_RSA="$OPENSSL_NEXT s_server -www -cert data_files/server2-sha256.crt -key data_files/server2.key"
     O_NEXT_CLI="echo 'GET / HTTP/1.0' | $OPENSSL_NEXT s_client"
 else