Rename some "new_session_tickets" symbols

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/tests/src/test_helpers/ssl_helpers.c b/tests/src/test_helpers/ssl_helpers.c
index b0fe2bd..3cb6175 100644
--- a/tests/src/test_helpers/ssl_helpers.c
+++ b/tests/src/test_helpers/ssl_helpers.c
@@ -2543,8 +2543,8 @@
                                          server_options, NULL, NULL, NULL);
     TEST_EQUAL(ret, 0);
 
-    mbedtls_ssl_conf_enable_new_session_tickets(
-        &client_ep.conf, MBEDTLS_SSL_NEW_SESSION_TICKETS_ENABLED);
+    mbedtls_ssl_conf_tls13_enable_signal_new_session_tickets(
+        &client_ep.conf, MBEDTLS_SSL_TLS1_3_SIGNAL_NEW_SESSION_TICKETS_ENABLED);
 
     mbedtls_ssl_conf_session_tickets_cb(&server_ep.conf,
                                         mbedtls_test_ticket_write,