ASoC: add DAI and platform / DMA drivers for SH SIU

Several SuperH platforms, including sh7722, sh7343, sh7354, sh7367 include
a Sound Interface Unit (SIU). This patch adds DAI and platform / DMA
drivers for this interface.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/sh/Makefile b/sound/soc/sh/Makefile
index 1d0ec0a..5a97d25 100644
--- a/sound/soc/sh/Makefile
+++ b/sound/soc/sh/Makefile
@@ -6,9 +6,11 @@
 snd-soc-hac-objs	:= hac.o
 snd-soc-ssi-objs	:= ssi.o
 snd-soc-fsi-objs	:= fsi.o
+snd-soc-siu-objs	:= siu_pcm.o siu_dai.o
 obj-$(CONFIG_SND_SOC_SH4_HAC)	+= snd-soc-hac.o
 obj-$(CONFIG_SND_SOC_SH4_SSI)	+= snd-soc-ssi.o
 obj-$(CONFIG_SND_SOC_SH4_FSI)	+= snd-soc-fsi.o
+obj-$(CONFIG_SND_SOC_SH4_SIU)	+= snd-soc-siu.o
 
 ## boards
 snd-soc-sh7760-ac97-objs	:= sh7760-ac97.o