Problem build of if_ath driver with certain mode

[Michael Pounov]

Hi, Adrian

I working with atheros driver intensively. After last build of -current
with my kernel config I found crash in build process.
After some investigation I found missing variable *ic if you use IEEE80211_SUPPORT_SUPERG.

Index: sys/dev/ath/if_ath.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/ath/if_ath.c,v
retrieving revision 1.380
diff -r1.380 if_ath.c
4891a4892,4893
>       struct ifnet *ifp = sc->sc_ifp;
>       struct ieee80211com *ic = ifp->if_l2com;


Look at a patch and if you think it is ok, may be is good to include.

Best Regards
-- 
Michael Pounov <misho at elwix.org>