fix bug in vgafb_copycols() use bus_space_copy_4() instead of bus_space_copy_1() for efficiency reasons.
fix bug in vgafb_copycols() use bus_space_copy_4() instead of
bus_space_copy_1() for efficiency reasons.

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