devlink: Add comment block for missing port attributes

Add comment block for physical, PF and VF port attributes.
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/devlink.h

@@ -73,6 +73,9 @@ struct devlink_port_pci_vf_attrs {
  * @splittable: indicates if the port can be split.
  * @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
  * @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
+ * @phys: physical port attributes
+ * @pci_pf: PCI PF port attributes
+ * @pci_vf: PCI VF port attributes
  */
 struct devlink_port_attrs {
 	u8 split:1,