staging: iio: adc: ad7192: Fix identation

This patch fixes the odd indentation inside function ad7192_calibrate_all.

Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index acdbc07..ebab75b 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -216,8 +216,8 @@
 
 static int ad7192_calibrate_all(struct ad7192_state *st)
 {
-		return ad_sd_calibrate_all(&st->sd, ad7192_calib_arr,
-				ARRAY_SIZE(ad7192_calib_arr));
+	return ad_sd_calibrate_all(&st->sd, ad7192_calib_arr,
+				   ARRAY_SIZE(ad7192_calib_arr));
 }
 
 static inline bool ad7192_valid_external_frequency(u32 freq)