[iwn driver] SIOCS80211 error on 4965AGN

[Rohit Tripathi]

> That shoud be... :)
>
> ifconfig wlan create wlandev iwn0

Great! I ran the above and wlan0 was created without any issues. Next
I tried to setup wlan0 with:

ssid HAM authmod shared wepmode on weptxkey 1 wepkey blahblah DHCP

and I first noticed ifconfig complain: "authmod: bad value",  "missing
or corrupted regdomain database"  and the os complain: "iwn0: need
multicast update callback"

( Here's what came up with a google search on the last error
http://lists.freebsd.org/pipermail/freebsd-current/2008-April/085152.html
 http://unix.derkeiler.com/Mailing-Lists/FreeBSD/current/2008-04/msg00554.html
)