thunderbolt: Add comment where Thunderbolt 4 PCI IDs start

This makes it consistent with the previous generations. No functional
impact.

Signed-off-by: Mika Westerberg <[email protected]>

Author: westeri

drivers/thunderbolt/nhi.c

@@ -1398,6 +1398,7 @@ static struct pci_device_id nhi_ids[] = {
 	  .driver_data = (kernel_ulong_t)&icl_nhi_ops },
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICL_NHI1),
 	  .driver_data = (kernel_ulong_t)&icl_nhi_ops },
+	/* Thunderbolt 4 */
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGL_NHI0),
 	  .driver_data = (kernel_ulong_t)&icl_nhi_ops },
 	{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGL_NHI1),