ALSA: hda - Increase the connection list size for ALC662

Some ALC662-compatible codecs like ALC892 may have more than 4
connections for the input source.  Use HDA_MAX_CONNECTIONS instead of
the fixed magic number 4.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -18657,7 +18657,7 @@ static void alc662_auto_set_output_and_unmute(struct hda_codec *codec,
 					      hda_nid_t dac)
 {
 	int i, num;
-	hda_nid_t srcs[4];
+	hda_nid_t srcs[HDA_MAX_CONNECTIONS];
 
 	alc_set_pin_output(codec, nid, pin_type);
 	/* need the manual connection? */