hwmon: (adt7470) Add missing dependency on REGMAP_I2C

This driver requires REGMAP_I2C to be selected in order to get access to
regmap_config and devm_regmap_init_i2c. Add the missing dependency.

Fixes: ef67959c ("hwmon: (adt7470) Convert to use regmap")
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Message-ID: <20241002-hwmon-select-regmap-v1-2-548d03268934@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/Kconfig

@@ -224,6 +224,7 @@ config SENSORS_ADT7462
 config SENSORS_ADT7470
 	tristate "Analog Devices ADT7470"
 	depends on I2C
+	select REGMAP_I2C
 	help
 	  If you say yes here you get support for the Analog Devices
 	  ADT7470 temperature monitoring chips.