net/mlx5: Enable count action for rules with allow action

Enable the creation of rules with allow and count actions.
This enables using counters on egress flow tables.

Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

@@ -1598,6 +1598,7 @@ static struct mlx5_flow_handle *add_rule_fg(struct mlx5_flow_group *fg,
 static bool counter_is_valid(u32 action)
 {
 	return (action & (MLX5_FLOW_CONTEXT_ACTION_DROP |
+			  MLX5_FLOW_CONTEXT_ACTION_ALLOW |
 			  MLX5_FLOW_CONTEXT_ACTION_FWD_DEST));
 }