[media] mt2063: get rid of compilation warnings

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/common/tuners/mt2063.h b/drivers/media/common/tuners/mt2063.h
index abc1efc..5dece2c 100644
--- a/drivers/media/common/tuners/mt2063.h
+++ b/drivers/media/common/tuners/mt2063.h
@@ -524,7 +524,7 @@
 	struct dvb_tuner_ops ops;
 	struct dvb_frontend *frontend;
 	struct tuner_state status;
-	const struct MT2063_Info_t *MT2063_ht;
+	struct MT2063_Info_t *MT2063_ht;
 	bool MT2063_init;
 
 	enum MTTune_atv_standard tv_type;
@@ -549,6 +549,15 @@
 	return NULL;
 }
 
+unsigned int mt2063_setTune(struct dvb_frontend *fe, u32 f_in,
+				   u32 bw_in,
+				   enum MTTune_atv_standard tv_type);
+
+unsigned int mt2063_lockStatus(struct dvb_frontend *fe);
+unsigned int tuner_MT2063_Open(struct dvb_frontend *fe);
+unsigned int tuner_MT2063_SoftwareShutdown(struct dvb_frontend *fe);
+unsigned int tuner_MT2063_ClearPowerMaskBits(struct dvb_frontend *fe);
+
 #endif /* CONFIG_DVB_MT2063 */
 
 #endif /* __MT2063_H__ */