[ALSA] create driver symlink in snd-aoa /sys/bus/aoa-soundbus/devices/*/

create sysfs driver symlink for snd-aoa in /sys/bus/aoa-soundbus/devices/*/
Acked-by: NJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: NOlaf Hering <olaf@aepfle.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

sound/aoa/fabrics/snd-aoa-fabric-layout.c

@@ -1107,6 +1107,9 @@ static struct soundbus_driver aoa_soundbus_driver = {
 	.suspend = aoa_fabric_layout_suspend,
 	.resume = aoa_fabric_layout_resume,
 #endif
+	.driver = {
+		.owner = THIS_MODULE,
+	}
 };
 
 static int __init aoa_fabric_layout_init(void)