HID: logitech-dj: rename "gaming" receiver to "lightspeed"

This should help people identify the receiver. there are several receivers used
in gaming mice. the "lightspeed" technology is pretty well advertise so this
won't just be an obscure name.
Signed-off-by: Filipe Laíns <lains@archlinux.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-ids.h

@@ -768,7 +768,7 @@
 #define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER		0xc52f
 #define USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2	0xc532
 #define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2		0xc534
-#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_GAMING	0xc539
+#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED	0xc539
 #define USB_DEVICE_ID_SPACETRAVELLER	0xc623
 #define USB_DEVICE_ID_SPACENAVIGATOR	0xc626
 #define USB_DEVICE_ID_DINOVO_DESKTOP	0xc704

drivers/hid/hid-logitech-dj.c

@@ -1832,9 +1832,9 @@ static const struct hid_device_id logi_dj_receivers[] = {
 	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
 			 USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
 	 .driver_data = recvr_type_hidpp},
-	{ /* Logitech gaming receiver (0xc539) */
+	{ /* Logitech lightspeed receiver (0xc539) */
 	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
-		USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_GAMING),
+		USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED),
 	 .driver_data = recvr_type_gaming_hidpp},
 	{ /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */
 	  HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),