ASoC: ak4642: Revive ak4642_snd_controls

This patch revive ak4642_snd_controls which was removed on
f0fba2ad1b6b53d5360125c41953b7afcd6deff0

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/ak4642.c

@@ -424,6 +424,8 @@ static int ak4642_probe(struct snd_soc_codec *codec)
 	codec->hw_write		= (hw_write_t)i2c_master_send;
 	codec->control_data = ak4642->control_data;
 
+	snd_soc_add_controls(codec, ak4642_snd_controls,
+			     ARRAY_SIZE(ak4642_snd_controls));
 
 	return 0;
 }