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>
diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index 0c056fcc..62bb981 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -83,7 +83,7 @@
 }
 
 /*
- * 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)