iio: Fix indentation for multiline conditional.

As reported by checkpatch.pl make indentation match previous
conditional.
Signed-off-by: Joe Simmons-Talbott <joetalbott@gmail.com>
Link: https://lore.kernel.org/r/20220727181855.589052-3-joetalbott@gmail.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/industrialio-buffer.c

@@ -843,8 +843,8 @@ static int iio_verify_update(struct iio_dev *indio_dev,
 	 * to verify.
 	 */
 	if (remove_buffer && !insert_buffer &&
-		list_is_singular(&iio_dev_opaque->buffer_list))
-			return 0;
+	    list_is_singular(&iio_dev_opaque->buffer_list))
+		return 0;
 
 	modes = indio_dev->modes;