V4L/DVB (4481): Make the dibx000-common-module GPL

Forget to put the MODULE-define and thus to give the license. Now GPL
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/dvb/frontends/dibx000_common.c

@@ -146,3 +146,7 @@ void dibx000_exit_i2c_master(struct dibx000_i2c_master *mst)
 	i2c_del_adapter(&mst->gated_tuner_i2c_adap);
 }
 EXPORT_SYMBOL(dibx000_exit_i2c_master);
+
+MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
+MODULE_DESCRIPTION("Common function the DiBcom demodulator family");
+MODULE_LICENSE("GPL");