When declaring playback and capture capabilities check for both CODEC
side and CPU side support rather than only checking for CODEC side
support.  While it is unusual some CPUs do have unidirectional DAIs.
Reported-by: NFabio Estevam <fabio.estevam@freescale.com>
Tested-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NLiam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>