RDMA/irdma: Implement egress VLAN priority

When a VLAN interface is in use, get and use the VLAN
egress mapping.

Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230711175318.1301-1-shiraz.saleem@intel.com


Signed-off-by: Leon Romanovsky <leon@kernel.org>