net/mlx5: allow jump to group lower than current

In current implementation, jump action is allowed only if target
group is higher than the current flow group,

This patch updates function flow_dv_validate_action_jump() to allow
jump action if target group is higher or lower than the current flow
group.
Target group equal to current flow group is still rejected.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

drivers/net/mlx5/mlx5_flow_dv.c

@@ -3255,10 +3255,10 @@ flow_dv_validate_action_jump(const struct rte_flow_action *action,
 		return rte_flow_error_set(error, EINVAL,
 					  RTE_FLOW_ERROR_TYPE_ATTR_GROUP, NULL,
 					  "target group index out of range");
-	if (attributes->group >= target_group)
+	if (attributes->group == target_group)
 		return rte_flow_error_set(error, EINVAL,
 					  RTE_FLOW_ERROR_TYPE_ACTION, NULL,
-					  "target group must be higher than"
+					  "target group must be other than"
 					  " the current flow group");
 	return 0;
 }