test: fix test 13, avp name for domain

test/unit/13.cfg

@@ -18,8 +18,8 @@ route{
 		return;
 	};
 	cr_user_carrier("$fU", "$fd", "$avp(s:11)");
-	$avp(domain)="start";
-	if (!cr_route("$avp(carrier)", "$avp(s:10)", "$rU", "$rU", "call_id", "$avp(s:12)")) {
+	$avp(s:10)="start";
+	if (!cr_route("$avp(s:11)", "$avp(s:10)", "$rU", "$rU", "call_id", "$avp(s:12)")) {
 		xlog("L_ERR", "cr_route failed\n");
 		exit;
 	}