[ALSA] use SNDRV_CTL_NAME_IEC958 macro

CMI8330 driver,ENS1370/1+ driver,FM801 driver,VIA82xx driver,AC97 Codec
ALI5451 driver,CS46xx driver,EMU10K1/EMU10K2 driver,HDA Codec driver
ICE1712 driver,ICE1724 driver
Where appropriate, use the SNDRV_CTL_NAME_IEC958 instead of a literal
string.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 0c64e65..bc8272b 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -1444,7 +1444,7 @@
 
 /* spdif controls */
 static snd_kcontrol_new_t snd_es1371_mixer_spdif[] __devinitdata = {
-	ES1371_SPDIF("IEC958 Playback Switch"),
+	ES1371_SPDIF(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH)),
 	{
 		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name =		SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),