ASoC: Intel: Split hsw_pcm_data for playback and capture

There may be 2 pcm streams for a same DAI at most, and these 2
streams should have different hsw_pcm_data, e.g. they have
different persistent data, so here we need split hsw_pcm_data
for playback and capture, to make sure they won't be mixed
and keep cleaned.

Signed-off-by: Jie Yang <yang.jie@intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>