USB: cdc-acm: add device id for GW Instek AFG-125

commit 30121604 upstream.

Add device-id entry for GW Instek AFG-125, which has a byte swapped
bInterfaceSubClass (0x20).
Signed-off-by: Nathaniel Quillin <ndq@google.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>

drivers/usb/class/cdc-acm.c

@@ -1588,6 +1588,7 @@ static const struct usb_device_id acm_ids[] = {
 	.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
 	},
 	{ USB_DEVICE(0x2184, 0x001c) },	/* GW Instek AFG-2225 */
+	{ USB_DEVICE(0x2184, 0x0036) },	/* GW Instek AFG-125 */
 	{ USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
 	},
 	/* Motorola H24 HSPA module: */