[PATCH 4/9] hwmon: sl28cpld: Use new helper hwmon_visible_0444

[Michael Walle]

> Use new helper hwmon_visible_0444 to simplify the code.
> 
> Signed-off-by: Heiner Kallweit <hkallweit1 at gmail.com>

Reviewed-by: Michael Walle <mwalle at kernel.org>

Thanks,
-michael