ASoC: add support for the sh7722 Migo-R board

Add support for audio on sh7722-based Migo-R boards, using SIU and wm8978
codec, recording via external microphone and playback via headphones are
implemented.

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/Kconfig b/sound/soc/sh/Kconfig
index 3f1cd55..a86696b 100644
--- a/sound/soc/sh/Kconfig
+++ b/sound/soc/sh/Kconfig
@@ -61,4 +61,12 @@
 	  This option enables generic sound support for the
 	  FSI - DA7210 unit
 
+config SND_SIU_MIGOR
+	tristate "SIU sound support on Migo-R"
+	depends on SH_MIGOR
+	select SND_SOC_SH4_SIU
+	select SND_SOC_WM8978
+	help
+	  This option enables sound support for the SH7722 Migo-R board
+
 endmenu