HID: wacom: add new MobileStudio Pro 13 support

wacom_wac_pad_event is the only routine we need to update.
Signed-off-by: NPing Cheng <ping.cheng@wacom.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/hid/wacom_wac.c

@@ -2093,14 +2093,14 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
 		    (hdev->product == 0x34d || hdev->product == 0x34e ||  /* MobileStudio Pro */
 		     hdev->product == 0x357 || hdev->product == 0x358 ||  /* Intuos Pro 2 */
 		     hdev->product == 0x392 ||				  /* Intuos Pro 2 */
-		     hdev->product == 0x399)) {				  /* MobileStudio Pro */
+		     hdev->product == 0x398 || hdev->product == 0x399)) { /* MobileStudio Pro */
 			value = (field->logical_maximum - value);
 
 			if (hdev->product == 0x357 || hdev->product == 0x358 ||
 			    hdev->product == 0x392)
 				value = wacom_offset_rotation(input, usage, value, 3, 16);
 			else if (hdev->product == 0x34d || hdev->product == 0x34e ||
-				 hdev->product == 0x399)
+				 hdev->product == 0x398 || hdev->product == 0x399)
 				value = wacom_offset_rotation(input, usage, value, 1, 2);
 		}
 		else {