Add new machine driver, tested with Ard-Audio-DA7212 [1]
connected to MinnowBoardMAX Turbot.

The MCLK is managed by the codec driver using the "mclk" handle
to reuse existing code, but it could just as well be handled
by this machine driver.

[1] http://www.dialog-semiconductor.com/content/ard-audio-da7212Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>