sound: ASoC: Blackfin: Include Blackfin architecture support in build

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index f743530..32ac940 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -31,6 +31,7 @@
 source "sound/soc/fsl/Kconfig"
 source "sound/soc/davinci/Kconfig"
 source "sound/soc/omap/Kconfig"
+source "sound/soc/blackfin/Kconfig"
 
 # Supported codecs
 source "sound/soc/codecs/Kconfig"