hwmon: (raspberrypi) Use generic notification mechanism

Use hwmon_notify_event() to make the code easier to
understand and to also generate udev events.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20210905190049.11381-1-W_Armin@gmx.deSigned-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/raspberrypi-hwmon.c

@@ -53,7 +53,7 @@ static void rpi_firmware_get_throttled(struct rpi_hwmon_data *data)
 	else
 		dev_info(data->hwmon_dev, "Voltage normalised\n");
 
-	sysfs_notify(&data->hwmon_dev->kobj, NULL, "in0_lcrit_alarm");
+	hwmon_notify_event(data->hwmon_dev, hwmon_in, hwmon_in_lcrit_alarm, 0);
 }
 
 static void get_values_poll(struct work_struct *work)