iio: light: cm32181: Fix typo 's/claibscale/calibscale/'

Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c
index ad36b29..5d12ae54 100644
--- a/drivers/iio/light/cm32181.c
+++ b/drivers/iio/light/cm32181.c
@@ -169,7 +169,7 @@
  * @cm32181:	pointer of struct cm32181.
  *
  * Convert sensor raw data to lux.  It depends on integration
- * time and claibscale variable.
+ * time and calibscale variable.
  *
  * Return: Positive value is lux, otherwise is error code.
  */