ASoC: rsnd: rsnd_reg cleanup for SSIU

R-Car Gen1 didn't have SSIU IP, and it was part of SRU.
In Gen2, SSIU was created and it has original register.
Let's cleanup rsnd_reg for SSIU, because this driver
doesn't support Gen1 SRU any more.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sh/rcar/rsnd.h

@@ -43,17 +43,7 @@
  * see gen1/gen2 for detail
  */
 enum rsnd_reg {
-	/* SCU (SRC/SSIU/MIX/CTU/DVC) */
-	RSND_REG_SSI_MODE,
-	RSND_REG_SSI_MODE0,
-	RSND_REG_SSI_MODE1,
-	RSND_REG_SSI_MODE2,
-	RSND_REG_SSI_CONTROL,
-	RSND_REG_SSI_CTRL,
-	RSND_REG_SSI_BUSIF_MODE,
-	RSND_REG_SSI_BUSIF_ADINR,
-	RSND_REG_SSI_BUSIF_DALIGN,
-	RSND_REG_SSI_INT_ENABLE,
+	/* SCU (MIX/CTU/DVC) */
 	RSND_REG_SRC_I_BUSIF_MODE,
 	RSND_REG_SRC_O_BUSIF_MODE,
 	RSND_REG_SRC_ROUTE_MODE0,
@@ -160,6 +150,18 @@ enum rsnd_reg {
 	RSND_REG_AUDIO_CLK_SEL1,
 	RSND_REG_AUDIO_CLK_SEL2,
 
+	/* SSIU */
+	RSND_REG_SSI_MODE,
+	RSND_REG_SSI_MODE0,
+	RSND_REG_SSI_MODE1,
+	RSND_REG_SSI_MODE2,
+	RSND_REG_SSI_CONTROL,
+	RSND_REG_SSI_CTRL,
+	RSND_REG_SSI_BUSIF_MODE,
+	RSND_REG_SSI_BUSIF_ADINR,
+	RSND_REG_SSI_BUSIF_DALIGN,
+	RSND_REG_SSI_INT_ENABLE,
+
 	/* SSI */
 	RSND_REG_SSICR,
 	RSND_REG_SSISR,