net/mlx5: E-Switch, Set the send-to-vport rules in the correct table

While adding actual offloading support to the new switchdev mode, we didn't
change the setup of the send-to-vport rules to put them in the slow path
table, fix that.

Fixes: 1033665e ('net/mlx5: E-Switch, Use two priorities for SRIOV offloads mode')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>