increment ifs6_in_toobig if ipv6 packet too large for interface in pf_route6().
increment ifs6_in_toobig if ipv6 packet too large for interface in
pf_route6().

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