hwmon: (tmp421) Replace S_<PERMS> with octal values

Replace S_<PERMS> with octal values.

The conversion was done automatically with coccinelle. The semantic patches
and the scripts used to generate this commit log are available at
https://github.com/groeck/coccinelle-patches/hwmon/.

This patch does not introduce functional changes. It was verified by
compiling the old and new files and comparing text and data sizes.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/tmp421.c

@@ -187,9 +187,9 @@ static umode_t tmp421_is_visible(const void *data, enum hwmon_sensor_types type,
 	case hwmon_temp_fault:
 		if (channel == 0)
 			return 0;
-		return S_IRUGO;
+		return 0444;
 	case hwmon_temp_input:
-		return S_IRUGO;
+		return 0444;
 	default:
 		return 0;
 	}