trivial: Fix misspelling of "Celsius".

A few comments say "Celcius"; this fixes them. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

drivers/acpi/thermal.c

@@ -367,7 +367,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 		/*
 		 * Treat freezing temperatures as invalid as well; some
 		 * BIOSes return really low values and cause reboots at startup.
-		 * Below zero (Celcius) values clearly aren't right for sure..
+		 * Below zero (Celsius) values clearly aren't right for sure..
 		 * ... so lets discard those as invalid.
 		 */
 		if (ACPI_FAILURE(status) ||

drivers/input/touchscreen/ads7846.c

@@ -295,7 +295,7 @@ name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
 static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
 
 
-/* Sysfs conventions report temperatures in millidegrees Celcius.
+/* Sysfs conventions report temperatures in millidegrees Celsius.
  * ADS7846 could use the low-accuracy two-sample scheme, but can't do the high
  * accuracy scheme without calibration data.  For now we won't try either;
  * userspace sees raw sensor values, and must scale/calibrate appropriately.

drivers/power/bq27x00_battery.c

@@ -83,7 +83,7 @@ static int bq27x00_read(u8 reg, int *rt_value, int b_single,
 }
 
 /*
- * Return the battery temperature in Celcius degrees
+ * Return the battery temperature in Celsius degrees
  * Or < 0 if something fails.
  */
 static int bq27x00_battery_temperature(struct bq27x00_device_info *di)