ASoC: mt6359: Fix refcount leak bug

In mt6359_parse_dt() and mt6359_accdet_parse_dt(), we should call
of_node_put() for the reference returned by of_get_child_by_name()
which has increased the refcount.

Fixes: 68353028 ("ASoC: mt6359: fix failed to parse DT properties")
Fixes: eef07b9e ("ASoC: mediatek: mt6359: add MT6359 accdet jack driver")
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220713102013.367336-1-windhl@126.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/mt6359-accdet.c

@@ -675,6 +675,7 @@ static int mt6359_accdet_parse_dt(struct mt6359_accdet *priv)
 			       sizeof(struct three_key_threshold));
 	}
 
+	of_node_put(node);
 	dev_warn(priv->dev, "accdet caps=%x\n", priv->caps);
 
 	return 0;

sound/soc/codecs/mt6359.c

@@ -2778,6 +2778,7 @@ static int mt6359_parse_dt(struct mt6359_priv *priv)
 
 	ret = of_property_read_u32(np, "mediatek,mic-type-2",
 				   &priv->mux_select[MUX_MIC_TYPE_2]);
+	of_node_put(np);
 	if (ret) {
 		dev_info(priv->dev,
 			 "%s() failed to read mic-type-2, use default (%d)\n",