thermal: Fix couple of spellos in the file sun8i_thermal.c

s/calibartion/calibration/
s/undocummented/undocumented/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210305014348.17412-1-unixbhaskar@gmail.com

drivers/thermal/sun8i_thermal.c

@@ -300,7 +300,7 @@ static int sun8i_ths_calibrate(struct ths_device *tmdev)
 		 * or 0x8xx, so they won't be away from the default value
 		 * for a lot.
 		 *
-		 * So here we do not return error if the calibartion data is
+		 * So here we do not return error if the calibration data is
 		 * not available, except the probe needs deferring.
 		 */
 		goto out;
@@ -418,7 +418,7 @@ static int sun8i_h3_thermal_init(struct ths_device *tmdev)
 }
 
 /*
- * Without this undocummented value, the returned temperatures would
+ * Without this undocumented value, the returned temperatures would
  * be higher than real ones by about 20C.
  */
 #define SUN50I_H6_CTRL0_UNK 0x0000002f