[ALSA] vxpocket - Fix wrong index assignment

Digigram VX Pocket driver
Fixed the wrong index number assignment.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pcmcia/vx/vxpocket.c b/sound/pcmcia/vx/vxpocket.c
index fcb952f..de5bb9c 100644
--- a/sound/pcmcia/vx/vxpocket.c
+++ b/sound/pcmcia/vx/vxpocket.c
@@ -407,7 +407,7 @@
 		return NULL;
 	}
 
-	vxp->index = index[i];
+	vxp->index = i;
 	card_alloc |= 1 << i;
 
 	/* Chain drivers */