ratelimit: allow flushing all default values

Signed-off-by: John Crispin <john@phrozen.org>

feeds/ucentral/ratelimit/files/etc/init.d/ratelimit

@@ -15,6 +15,7 @@ add_rate() {
 
 reload_service() {
 	logger ratelimit reload
+	ubus call ratelimit flush
 	config_load ratelimit
 	config_foreach add_rate rate
 }

feeds/ucentral/ratelimit/files/usr/bin/ratelimit

@@ -212,6 +212,14 @@ function run_service() {
 	let uctx = ubus.connect();
 
 	uctx.publish("ratelimit", {
+		flush: {
+			call: function(req) {
+				defaults = {};
+			},
+			args: {
+
+			}
+		},
 		defaults_set: {
 			call: function(req) {
 				let r_i = req.args.rate_ingress ?? req.args.rate;