netfilter: bridge: nf queue verdict to use NFQA_VLAN and NFQA_L2HDR

This makes nf queues use NFQA_VLAN and NFQA_L2HDR in verdict to modify the
original skb

Signed-off-by: Stephane Bryant <stephane.ml.bryant@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>