[ALSA] add TempoTec HiFier driver

Add a driver for the MediaTek/TempoTec HiFier Fantasia sound card.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/oxygen/oxygen_mixer.c b/sound/pci/oxygen/oxygen_mixer.c
index 21b227a..fe53318 100644
--- a/sound/pci/oxygen/oxygen_mixer.c
+++ b/sound/pci/oxygen/oxygen_mixer.c
@@ -712,6 +712,8 @@
 		err = chip->model->control_filter(&template);
 		if (err < 0)
 			return err;
+		if (err == 1)
+			continue;
 		ctl = snd_ctl_new1(&template, chip);
 		if (!ctl)
 			return -ENOMEM;