HID: wacom: Don't clear bits unintentionally

This is trying to clear the lower 32 bits but the type is wrong so it
clears everything.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/wacom_wac.c

@@ -1765,7 +1765,7 @@ static int wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field,
 		wacom_wac->hid_data.tipswitch |= value;
 		return 0;
 	case HID_DG_TOOLSERIALNUMBER:
-		wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFF);
+		wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
 		wacom_wac->serial[0] |= value;
 		return 0;
 	case WACOM_HID_WD_SENSE: