[media] au8522_common: add missing MODULE_LICENSE

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/au8522_common.c

@@ -26,6 +26,8 @@
 #include "dvb_frontend.h"
 #include "au8522_priv.h"
 
+MODULE_LICENSE("GPL");
+
 static int debug;
 
 #define dprintk(arg...)\