V4L/DVB (9275): dvb: input data pointer of cx24116_writeregN() should be const

| drivers/media/dvb/frontends/cx24116.c:573: warning: passing argument 3 of 'cx24116_writeregN' discards qualifiers from pointer target type

Make the `data' input pointer parameter of cx24116_writeregN() const to
kill the warning.
Signed-off-by: NGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/frontends/cx24116.c

@@ -215,7 +215,7 @@ static int cx24116_writereg(struct cx24116_state *state, int reg, int data)
 
 /* Bulk byte writes to a single I2C address, for 32k firmware load */
 static int cx24116_writeregN(struct cx24116_state *state, int reg,
-	u8 *data, u16 len)
+			     const u8 *data, u16 len)
 {
 	int ret = -EREMOTEIO;
 	struct i2c_msg msg;