ASoC: pcm: Export parameter intersection logic

The logic to calculate the subset of stream parameters supported by all
DAIs associated with a PCM stream is nontrivial. Export a helper
function so it can be used to set up simple codec2codec DAI links.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20200305051143.60691-3-samuel@sholland.org


Signed-off-by: Mark Brown <broonie@kernel.org>