- Correct USB 3.0 wire-speed to 5.0Gbps

MFC after:	3 days
Approved by:	thompsa (mentor)

share/man/man4/xhci.4

@@ -48,7 +48,7 @@ The
 .Tn XHCI
 controller supports
 .Tn USB
-connection speeds up to 4.8Gbps when using a USB 3.0 compliant device.
+connection speeds up to 5.0Gbps when using a USB 3.0 compliant device.
 .Sh SEE ALSO
 .Xr ehci 4 ,
 .Xr ohci 4 ,

sys/dev/usb/controller/usb_controller.c

@@ -365,7 +365,7 @@ usb_bus_attach(struct usb_proc_msg *pm)
 
 	case USB_REV_3_0:
 		speed = USB_SPEED_SUPER;
-		device_printf(bus->bdev, "4.8Gbps Super Speed USB v3.0\n");
+		device_printf(bus->bdev, "5.0Gbps Super Speed USB v3.0\n");
 		break;
 
 	default:

usr.sbin/usbconfig/dump.c

@@ -65,11 +65,11 @@ dump_speed(uint8_t value)
 	case LIBUSB20_SPEED_VARIABLE:
 		return ("VARIABLE (52-480Mbps)");
 	case LIBUSB20_SPEED_SUPER:
-		return ("SUPER (4.8Gbps)");
+		return ("SUPER (5.0Gbps)");
 	default:
 		break;
 	}
-	return ("unknown");
+	return ("UNKNOWN ()");
 }
 
 const char *