ASoC: arizona: Add new common Arizona init function

Currently the driver has quite a few small initialisation functions, in
preparation for some refactoring add a new function arizona_init_common.
This will be used bus probe level initialisation that is common across
Arizona devices. For now just move the notifier chain initialisation in
there.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index 858a24f..0437df6 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -2290,7 +2290,6 @@ static int wm5110_codec_probe(struct snd_soc_codec *codec)
 
 	arizona_init_gpio(codec);
 	arizona_init_mono(codec);
-	arizona_init_notifiers(codec);
 
 	for (i = 0; i < WM5110_NUM_ADSP; ++i) {
 		ret = wm_adsp2_codec_probe(&priv->core.adsp[i], codec);
@@ -2454,6 +2453,8 @@ static int wm5110_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	arizona_init_common(arizona);
+
 	ret = arizona_init_spk_irqs(arizona);
 	if (ret < 0)
 		goto err_dsp_irq;