BUG12015: Redirecting to Captive portal does not work after IPFire restart

When the Captive portal is enabled, the needed firewall rules are applied. But when restarting IPFire,
the rules are not applied because there is no call to do so.
Added call to captivectrl in the initscrip 'firewall'.

Fixes: #12015

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

src/initscripts/system/firewall

@@ -379,6 +379,9 @@ iptables_init() {
 	# run wirelessctrl
 	/usr/local/bin/wirelessctrl
 
+	# run captivectrl
+	/usr/local/bin/captivectrl
+
 	# POLICY CHAIN
 	iptables -N POLICYIN
 	iptables -A INPUT -j POLICYIN