ASoC: rx51: Use snd_soc_dapm_to_codec() instead of dapm->codec

The CODEC struct in the snd_soc_dapm_context struct is deprecated and
scheduled for removal. Use the snd_soc_dapm_to_codec() function instead.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/omap/rx51.c

@@ -168,7 +168,7 @@ static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
 			 struct snd_kcontrol *k, int event)
 {
-	struct snd_soc_codec *codec = w->dapm->codec;
+	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 
 	if (SND_SOC_DAPM_EVENT_ON(event))
 		tpa6130a2_stereo_enable(codec, 1);