ar71xx: add script for automatic switch name migration

Thanks to Jonas Gorski for the help.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@35567 3c298f89-4303-0410-b956-a3cf2f4a3e73
iptables: add --lenient switch to iptables-restore and ip6tables-restore that allows to skip erroneous lines

git-svn-id: svn://svn.openwrt.org/openwrt@35568 3c298f89-4303-0410-b956-a3cf2f4a3e73