hwmon: cleanup non-bool "valid" data fields

We have bool so use it consistently in all the drivers.

The following Coccinelle script was used:

@@
identifier T;
type t = { char, int };
@@
struct T {
...
-	t valid;
+	bool valid;
...
}

@@
identifier v;
@@
(
- v->valid = 0
+ v->valid = false
|
- v->valid = 1
+ v->valid = true
)

followed by sed to fixup the comments:
sed '/bool valid;/{s/!=0/true/;s/zero/false/}'

Few whitespace changes were fixed manually. All modified drivers were
compile-tested.

Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Link: https://lore.kernel.org/r/20210924195202.27917-1-fercerpav@gmail.com
[groeck: Fixed up 'u8 valid' to 'boool valid' in atxp1.c]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/w83795.c b/drivers/hwmon/w83795.c
index 621b05a..45b12c4 100644
--- a/drivers/hwmon/w83795.c
+++ b/drivers/hwmon/w83795.c
@@ -379,7 +379,7 @@ struct w83795_data {
 	u8 enable_beep;
 	u8 beeps[6];		/* Register value */
 
-	char valid;
+	bool valid;
 	char valid_limits;
 	char valid_pwm_config;
 };
@@ -684,7 +684,7 @@ static struct w83795_data *w83795_update_device(struct device *dev)
 			     tmp & ~ALARM_CTRL_RTSACS);
 
 	data->last_updated = jiffies;
-	data->valid = 1;
+	data->valid = true;
 
 END:
 	mutex_unlock(&data->update_lock);
@@ -764,7 +764,7 @@ store_chassis_clear(struct device *dev,
 
 	/* Clear status and force cache refresh */
 	w83795_read(client, W83795_REG_ALARM(5));
-	data->valid = 0;
+	data->valid = false;
 	mutex_unlock(&data->update_lock);
 	return count;
 }