ASoC: rt5645: multiple JD mode support

There are 3 JD modes in RT5645. This patch configure register
values according to platform data.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/include/sound/rt5645.h b/include/sound/rt5645.h
index 937f421..120d961 100644
--- a/include/sound/rt5645.h
+++ b/include/sound/rt5645.h
@@ -26,6 +26,7 @@
 
 	/* true if codec's jd function is used */
 	bool en_jd_func;
+	unsigned int jd_mode;
 };
 
 #endif