[ALSA] cs5535audio - trivial debug printk

Following is a trivial patch to get more info for boards where
the AC97_VENDOR_ID2 register (or others) time out.

Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index f61c4fa..91c18a1 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -110,7 +110,8 @@
 		udelay(1);
 	} while (--timeout);
 	if (!timeout)
-		snd_printk(KERN_ERR "Failure reading cs5535 codec\n");
+		snd_printk(KERN_ERR "Failure reading codec reg 0x%x,"
+					"Last value=0x%x\n", reg, val);
 
 	return (unsigned short) val;
 }