ALSA: usb: cosmetics, remove a leading space

Signed-off-by: Antonio Ospite <ao2@amarulasolutions.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/card.c b/sound/usb/card.c
index ccf95cf..803953a 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -646,7 +646,7 @@
 				as->substream[0].need_setup_ep =
 					as->substream[1].need_setup_ep = true;
 			}
- 		}
+		}
 	} else {
 		/*
 		 * otherwise we keep the rest of the system in the dark