ASoC: wl1273: Use SOC_ENUM_SINGLE_EXT_DECL()

Just replace with the helper macro.  No functional change at all.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/codecs/wl1273.c

@@ -209,8 +209,7 @@ static int snd_wl1273_set_audio_route(struct snd_kcontrol *kcontrol,
 	return 1;
 }
 
-static const struct soc_enum wl1273_enum =
-	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wl1273_audio_route), wl1273_audio_route);
+static SOC_ENUM_SINGLE_EXT_DECL(wl1273_enum, wl1273_audio_route);
 
 static int snd_wl1273_fm_audio_get(struct snd_kcontrol *kcontrol,
 				   struct snd_ctl_elem_value *ucontrol)
@@ -247,9 +246,7 @@ static int snd_wl1273_fm_audio_put(struct snd_kcontrol *kcontrol,
 
 static const char * const wl1273_audio_strings[] = { "Digital", "Analog" };
 
-static const struct soc_enum wl1273_audio_enum =
-	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wl1273_audio_strings),
-			    wl1273_audio_strings);
+static SOC_ENUM_SINGLE_EXT_DECL(wl1273_audio_enum, wl1273_audio_strings);
 
 static int snd_wl1273_fm_volume_get(struct snd_kcontrol *kcontrol,
 				    struct snd_ctl_elem_value *ucontrol)