trim FCS in the driver instead of setting the M_HASFCS flag and letting ieee80211_input() do the job.
trim FCS in the driver instead of setting the M_HASFCS flag and letting
ieee80211_input() do the job.

requested by brad@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars