[ALSA] hda-codec - Fix possible array overflow

dac_nids arrays in each codec support code may have up to 5 items
when assigned from the auto-configurator.  Some codec codes have
less numbers than the possible max.  This patch defines the constant
and fixes the array definitions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 9bf38f9..0ee8ae4 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -72,7 +72,7 @@
 	unsigned int num_kctl_alloc, num_kctl_used;
 	struct snd_kcontrol_new *kctl_alloc;
 	struct hda_input_mux private_imux;
-	hda_nid_t private_dac_nids[4];
+	hda_nid_t private_dac_nids[AUTO_CFG_MAX_OUTS];
 
 	unsigned int jack_present :1;