usb: set root hub lane counts

Set the the rx_lane and tx_lane count to "2" for USB 3.2 hosts.
For all other older hosts set the default lane counts to 1
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/core/hcd.c

@@ -2793,6 +2793,9 @@ int usb_add_hcd(struct usb_hcd *hcd,
 	hcd->self.root_hub = rhdev;
 	mutex_unlock(&usb_port_peer_mutex);
 
+	rhdev->rx_lanes = 1;
+	rhdev->tx_lanes = 1;
+
 	switch (hcd->speed) {
 	case HCD_USB11:
 		rhdev->speed = USB_SPEED_FULL;
@@ -2807,6 +2810,8 @@ int usb_add_hcd(struct usb_hcd *hcd,
 		rhdev->speed = USB_SPEED_SUPER;
 		break;
 	case HCD_USB32:
+		rhdev->rx_lanes = 2;
+		rhdev->tx_lanes = 2;
 	case HCD_USB31:
 		rhdev->speed = USB_SPEED_SUPER_PLUS;
 		break;