Staging: wlan-ng: Explicitly set some fields in cfg80211 interface

The cfg80211 api has introduced a few new fields. Rather than assume
what cfg80211 api does by default, set these explicitly.

Signed-off-by: Karl Relton <karllinuxtest.relton@ntlworld.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>