ASoC: Blackfin: ADAU1X81 eval board support

This patch adds a ASoC machine driver to support the EVAL-ADAU1X81 board
connected to a Analog Devices BF5XX evaluation board.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --cc sound/soc/blackfin/Kconfig
Simple merge

diff --cc sound/soc/blackfin/Makefile
Simple merge

diff --cc sound/soc/blackfin/bfin-eval-adau1x81.c
Simple merge