ASoC: adsp: Add ADSP base support

Many current Wolfson devices feature DSPs based around an architecture
known as ADSP.  Since there is a lot of commonality in the system
integration of these devices a common library will be used to provide
support for them.

This version provides equivalent support for ADSP1 to that currently
included in the WM2200 driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index b92759a..f866e18 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -146,6 +146,11 @@
 	default y if SND_SOC_WM8993=y || SND_SOC_WM8994=y
 	default m if SND_SOC_WM8993=m || SND_SOC_WM8994=m
 
+config SND_SOC_WM_ADSP
+	tristate
+	default y if SND_SOC_WM2200=y
+	default m if SND_SOC_WM2200=m
+
 config SND_SOC_AB8500_CODEC
 	tristate