[patch] iwi(4) suspend/resume broken

Hi,

I've noticed that iwi(4) doesn't have ieee80211_new_state(IEEE80211_S_INIT)
in iwi_stop_locked() since 8.0-RELEASE (comparing with RELENG_7's).

It seems that this prevent if_iwi from working properly after resuming,
no data frames were sent.

The patches is available at:
http://people.freebsd.org/~iwasaki/iwi/iwi-20120314.diff

Now that iwi(4) is working well for me :)

I'll commit this coming weekend if there are no objections.

Thanks!