scsi: sd: Fix indentation

This patch avoids that smatch reports the following:

drivers/scsi/sd.c:3540: sd_suspend_common() warn: inconsistent indenting
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/sd.c

@@ -3537,7 +3537,7 @@ static int sd_suspend_common(struct device *dev, bool ignore_stop_errors)
 			 * doesn't support sync. There's not much to do and
 			 * suspend shouldn't fail.
 			 */
-			 ret = 0;
+			ret = 0;
 		}
 	}