net/mlx5e: Handle matching on vlan priority for offloaded TC rules

We ignored the vlan priority in offloaded TC rules matching part,
fix that.

Fixes: 095b6cfd ('net/mlx5e: Add TC vlan match parsing')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>