ALSA: hda/realtek - Avoid multi-ios conflicting with multi-speakers

When a machine has multiple speakers, we don't need to create the
controls for multi-ios.  Check the number of primary outputs beforehand.

Note that this workaround might not work always with new codecs in
future; this assumes that both speakers and multi-io jacks share the
same mixers/DACs.  If they are routed with different mixers, the
individual mixer controls should be needed.  But, so far, this doesn't
happen with the existing ALC codecs.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -3233,7 +3233,7 @@ static int alc_auto_create_multi_out_ctls(struct hda_codec *codec,
 	int i, err, noutputs;
 
 	noutputs = cfg->line_outs;
-	if (spec->multi_ios > 0)
+	if (spec->multi_ios > 0 && cfg->line_outs < 3)
 		noutputs += spec->multi_ios;
 
 	for (i = 0; i < noutputs; i++) {