rocker: move mutually exclusive members in group struct to union

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
rocker: in monitor output, prefix tagged VLANs with '*' to distiquish from internal VLANs

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
rocker: bug fix: set vlan hdr field correctly

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
rocker: add L2 mcast group macro to match driver

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
rocker: fix test for tagged or untagged VLANs; use CFI bit to indicate VLAN tag

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
rocker: add some DPRINTF for err conditions on bridge tbl add

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
rocker: qemu monitor: add l2 rewrite group field output

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
rocker: add support for L2 rewrite groups to support access VLANs

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>