ASoC: add Renesas R-Car SCU feature

Renesas R-Car series sound circuit consists of SSI and its peripheral.
But this peripheral circuit is different between
R-Car Generation1 (E1/M1/H1) and Generation2 (E2/M2/H2)
(Actually, there are many difference in Generation1 chips)

This patch adds SCU feature on this driver.
But, it defines SCU style only, does nothing at this point.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/include/sound/rcar_snd.h b/include/sound/rcar_snd.h
index 14942a8..01f2e45 100644
--- a/include/sound/rcar_snd.h
+++ b/include/sound/rcar_snd.h
@@ -14,8 +14,15 @@
 
 #include <linux/sh_clk.h>
 
+#define RSND_GEN1_SRU	0
 
-#define RSND_BASE_MAX	0
+#define RSND_GEN2_SRU	0
+
+#define RSND_BASE_MAX	1
+
+struct rsnd_scu_platform_info {
+	u32 flags;
+};
 
 struct rsnd_dai_platform_info {
 	int ssi_id_playback;
@@ -34,6 +41,8 @@
 
 struct rcar_snd_info {
 	u32 flags;
+	struct rsnd_scu_platform_info *scu_info;
+	int scu_info_nr;
 	struct rsnd_dai_platform_info *dai_info;
 	int dai_info_nr;
 	int (*start)(int id);