tools: usb: testusb: Add wireless speed reporting

Add the ability to detect and print the USB speed as "wireless" if/when the
kernel reports that speed.

Signed-off-by: Bryan O'Donoghue <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

tools/usb/testusb.c

···
 enum usb_device_speed {
 	USB_SPEED_UNKNOWN = 0,			/* enumerating */
 	USB_SPEED_LOW, USB_SPEED_FULL,		/* usb 1.1 */
-	USB_SPEED_HIGH				/* usb 2.0 */
+	USB_SPEED_HIGH,				/* usb 2.0 */
+	USB_SPEED_WIRELESS,			/* wireless (usb 2.5) */
 };
 
 /*-------------------------------------------------------------------------*/
···
 static char *speed (enum usb_device_speed s)
 {
 	switch (s) {
-	case USB_SPEED_UNKNOWN:	return "unknown";
-	case USB_SPEED_LOW:	return "low";
-	case USB_SPEED_FULL:	return "full";
-	case USB_SPEED_HIGH:	return "high";
-	default:		return "??";
+	case USB_SPEED_UNKNOWN:		return "unknown";
+	case USB_SPEED_LOW:		return "low";
+	case USB_SPEED_FULL:		return "full";
+	case USB_SPEED_HIGH:		return "high";
+	case USB_SPEED_WIRELESS:	return "wireless";
+	default:			return "??";
 	}
 }