mfd: abx500: Fix spelling mistake: "Celcius" -> "Celsius"

Trivial fix to spelling mistake in MFD headers.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

include/linux/mfd/abx500.h

@@ -45,7 +45,7 @@ enum abx500_adc_therm {
  * struct abx500_res_to_temp - defines one point in a temp to res curve. To
  * be used in battery packs that combines the identification resistor with a
  * NTC resistor.
- * @temp:			battery pack temperature in Celcius
+ * @temp:			battery pack temperature in Celsius
  * @resist:			NTC resistor net total resistance
  */
 struct abx500_res_to_temp {

include/linux/mfd/abx500/ab8500-bm.h

@@ -279,7 +279,7 @@ enum bup_vch_sel {
  * struct res_to_temp - defines one point in a temp to res curve. To
  * be used in battery packs that combines the identification resistor with a
  * NTC resistor.
- * @temp:			battery pack temperature in Celcius
+ * @temp:			battery pack temperature in Celsius
  * @resist:			NTC resistor net total resistance
  */
 struct res_to_temp {
@@ -290,7 +290,7 @@ struct res_to_temp {
 /**
  * struct batres_vs_temp - defines one point in a temp vs battery internal
  * resistance curve.
- * @temp:			battery pack temperature in Celcius
+ * @temp:			battery pack temperature in Celsius
  * @resist:			battery internal reistance in mOhm
  */
 struct batres_vs_temp {