[media] m88ds3103: use regmap for I2C register access

config DVB_M88DS3103

	tristate "Montage Technology M88DS3103"

	depends on DVB_CORE && I2C && I2C_MUX

	select REGMAP_I2C

	default m if !MEDIA_SUBDRV_AUTOSELECT

	help

	  Say Y when you want to support this frontend.

#include "dvb_math.h"

#include <linux/firmware.h>

#include <linux/i2c-mux.h>

#include <linux/regmap.h>

#include <linux/math64.h>

#define M88DS3103_FIRMWARE "dvb-demod-m88ds3103.fw"

struct m88ds3103_dev {

	struct i2c_client *client;

	/* mutex needed due to own tuner I2C adapter */

	struct mutex i2c_mutex;

	struct regmap_config regmap_config;

	struct regmap *regmap;

	struct m88ds3103_config config;

	const struct m88ds3103_config *cfg;

	struct dvb_frontend fe;