[ALSA] hda-intel - Don't try to probe invalid codecs

Fix the max number of codecs detected by HD-intel (and compatible)
controllers to 3.  Some hardware reports extra bits as if
connected, and the driver gets confused to probe unexisting codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index e6a1e37..83d1ba7 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -199,7 +199,7 @@
 
 /* STATESTS int mask: SD2,SD1,SD0 */
 #define STATESTS_INT_MASK	0x07
-#define AZX_MAX_CODECS		4
+#define AZX_MAX_CODECS		3
 
 /* SD_CTL bits */
 #define SD_CTL_STREAM_RESET	0x01	/* stream reset bit */