HID: wacom: Add module description

Add description for hid-wacom module: "Driver for Wacom Graphire Bluetooth
and Wacom Intuos4 WL"
Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/hid/hid-wacom.c

@@ -687,5 +687,5 @@ static void __exit wacom_exit(void)
 
 module_init(wacom_init);
 module_exit(wacom_exit);
+MODULE_DESCRIPTION("Driver for Wacom Graphire Bluetooth and Wacom Intuos4 WL");
 MODULE_LICENSE("GPL");
-