net/mlx5e: Remove limitation of single NIC offloaded TC action per rule

Remove the limitation that offloaded NIC filters can have only one
action. This allows us for example to provide flow tag as a note
to upper layers / apps that that HW header re-write was applied.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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

@@ -1194,10 +1194,6 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 
 	tcf_exts_to_list(exts, &actions);
 	list_for_each_entry(a, &actions, list) {
-		/* Only support a single action per rule */
-		if (attr->action)
-			return -EINVAL;
-
 		if (is_tcf_gact_shot(a)) {
 			attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
 			if (MLX5_CAP_FLOWTABLE(priv->mdev,