ALSA: usx2y: fix inconsistent indenting on if statement

minor change, indenting is one tab out.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/usb/usx2y/usbusx2yaudio.c

@@ -166,7 +166,7 @@ static int usX2Y_urb_play_prepare(struct snd_usX2Y_substream *subs,
 			/* set the buffer pointer */
 			urb->transfer_buffer = runtime->dma_area + subs->hwptr * usX2Y->stride;
 			if ((subs->hwptr += count) >= runtime->buffer_size)
-			subs->hwptr -= runtime->buffer_size;			
+				subs->hwptr -= runtime->buffer_size;
 		}
 	else
 		urb->transfer_buffer = subs->tmpbuf;