NETFILTER kernel configuration should be consistent for i386, amd64 and lpia

[Brad Figg]

This is essentially bug#355291 but for Karmic. It is filed separately because #355291 for jaunty has been fixed-released and the same changes need to be made for Karmic and tracked.

From bug#355291:
The 'recent' module of iptables is broken on lpia because the kernel is compiled without CONFIG_NETFILTER_XT_MATCH_RECENT. This is a regression over Intrepid:

$ grep RECENT ./config-2.6.2*
./config-2.6.27-4-lpia:CONFIG_IP_NF_MATCH_RECENT=m
./config-2.6.28-11-lpia:# CONFIG_NETFILTER_XT_MATCH_RECENT is not set

$ cat /proc/version_signature
Ubuntu 2.6.28-11.40-lpia
$ sudo iptables -A INPUT -p tcp --dport 22 -m state --state NEW -m recent --set
iptables: No chain/target/match by that name

Ufw uses this module when using the LIMIT command, which causes the firewall to not load on boot due to iptables-restore failing. Ufw users are only affected when using LIMIT rules.

[Andy Whitcroft (apw)]

This was actually included in the origin 2.6.30 upload but was missed in the changelog. Moving Fix Released.