- Enable ALTQ support. - Let the VLAN driver know that the hw can send and receive full size VLAN tagged packets.
- Enable ALTQ support.
- Let the VLAN driver know that the hw can send and receive full size
VLAN tagged packets.

Tested by maja@

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