include: linux: iio: Fix function parameter name in kernel doc

Fix buffer name from kernel doc according to the function parameter.

Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
index 26fb8f6..fad5867 100644
--- a/include/linux/iio/consumer.h
+++ b/include/linux/iio/consumer.h
@@ -100,7 +100,7 @@
 
 /**
  * iio_channel_cb_get_channels() - get access to the underlying channels.
- * @cb_buff:		The callback buffer from whom we want the channel
+ * @cb_buffer:		The callback buffer from whom we want the channel
  *			information.
  *
  * This function allows one to obtain information about the channels.