firewall: update to git head

	- fixes calculation of IPv4 netmasks derived from 0.0.0.0/0 CIDRs

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36960 3c298f89-4303-0410-b956-a3cf2f4a3e73
firewall: update to git head

	- fixes misprocessing of unknown symbolic protocol names

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36963 3c298f89-4303-0410-b956-a3cf2f4a3e73