added missing function pointers in eap_identity_create_server()

src/libcharon/plugins/eap_identity/eap_identity.c

@@ -211,6 +211,8 @@ eap_identity_t *eap_identity_create_server(identification_t *server,
 				.get_type = _get_type,
 				.is_mutual = _is_mutual,
 				.get_msk = _get_msk,
+				.get_identifier = _get_identifier,
+				.set_identifier = _set_identifier,
 				.destroy = _destroy,
 			},
 		},