fix name conversion issue for tls13 server entry

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 016dfe1..10b07b7 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -950,7 +950,7 @@
 void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl );
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
 int mbedtls_ssl_tls13_handshake_client_step( mbedtls_ssl_context *ssl );
-int mbedtls_ssl_handshake_server_step_tls1_3( mbedtls_ssl_context *ssl );
+int mbedtls_ssl_tls13_handshake_server_step( mbedtls_ssl_context *ssl );
 #endif
 
 int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl );