Add tls13 write new session ticket

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index e665ec1..5512482 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -667,6 +667,7 @@
     MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO,
     MBEDTLS_SSL_SERVER_CCS_AFTER_SERVER_HELLO,
     MBEDTLS_SSL_SERVER_CCS_AFTER_HELLO_RETRY_REQUEST,
+    MBEDTLS_SSL_NEW_SESSION_TICKET_FLUSH,
 }
 mbedtls_ssl_states;