hwmon: (nsa320-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants

Use SENSOR[_DEVICE]_ATTR[_2]_{RO,RW,WO} to simplify the source code,
to improve readability, and to reduce the chance of inconsistencies.

Also replace any remaining S_<PERMS> in the driver 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/nsa320-hwmon.c

@@ -114,8 +114,8 @@ static s32 nsa320_hwmon_update(struct device *dev)
 	return mcu_data;
 }
 
-static ssize_t show_label(struct device *dev,
-			  struct device_attribute *attr, char *buf)
+static ssize_t label_show(struct device *dev, struct device_attribute *attr,
+			  char *buf)
 {
 	int channel = to_sensor_dev_attr(attr)->index;
 
@@ -144,9 +144,9 @@ static ssize_t fan1_input_show(struct device *dev,
 	return sprintf(buf, "%d\n", ((mcu_data & 0xff0000) >> 16) * 100);
 }
 
-static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_label, NULL, NSA320_TEMP);
+static SENSOR_DEVICE_ATTR_RO(temp1_label, label, NSA320_TEMP);
 static DEVICE_ATTR_RO(temp1_input);
-static SENSOR_DEVICE_ATTR(fan1_label, S_IRUGO, show_label, NULL, NSA320_FAN);
+static SENSOR_DEVICE_ATTR_RO(fan1_label, label, NSA320_FAN);
 static DEVICE_ATTR_RO(fan1_input);
 
 static struct attribute *nsa320_attrs[] = {