[ALSA] ASoC: Fix DAPM widget function types in pxa machine drivers

Add kcontrol argument to functions since the API was changed by the commit
9af6d9562414568ecadf96aaef5b88e7e8b19821.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index e4d40b5..7346d7e 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -135,7 +135,8 @@
 }
 
 /* tosa dapm event handlers */
-static int tosa_hp_event(struct snd_soc_dapm_widget *w, int event)
+static int tosa_hp_event(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *k, int event)
 {
 	if (SND_SOC_DAPM_EVENT_ON(event))
 		set_tc6393_gpio(&tc6393_device.dev,TOSA_TC6393_L_MUTE);