ASoC: mediatek: mt6359: Add stub for mt6359_accdet_enable_jack_detect

Add a stub for mt6359_accdet_enable_jack_detect() to prevent linker
failures in the machine sound drivers calling it when
CONFIG_SND_SOC_MT6359_ACCDET is not enabled.

Suggested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://patch.msgid.link/20250306-mt8188-accdet-v3-3-7828e835ff4b@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: nfraprado

sound/soc/codecs/mt6359-accdet.h

@@ -123,6 +123,15 @@ struct mt6359_accdet {
 	struct workqueue_struct *jd_workqueue;
 };
 
+#if IS_ENABLED(CONFIG_SND_SOC_MT6359_ACCDET)
 int mt6359_accdet_enable_jack_detect(struct snd_soc_component *component,
 				     struct snd_soc_jack *jack);
+#else
+static inline int
+mt6359_accdet_enable_jack_detect(struct snd_soc_component *component,
+				 struct snd_soc_jack *jack)
+{
+	return -EOPNOTSUPP;
+}
+#endif
 #endif