[media] radio-si476x: Fix indent

As reported by smatch:
	drivers/media/radio/radio-si476x.c:571 si476x_radio_do_post_powerup_init() warn: inconsistent indenting
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/radio/radio-si476x.c

@@ -568,8 +568,8 @@ static int si476x_radio_do_post_powerup_init(struct si476x_radio *radio,
 	err = regcache_sync_region(radio->core->regmap,
 				   SI476X_PROP_DIGITAL_IO_INPUT_SAMPLE_RATE,
 				   SI476X_PROP_DIGITAL_IO_OUTPUT_FORMAT);
-		if (err < 0)
-			return err;
+	if (err < 0)
+		return err;
 
 	err = regcache_sync_region(radio->core->regmap,
 				   SI476X_PROP_AUDIO_DEEMPHASIS,