FROMLIST: ASoC: SOF: Add userspace ABI support

Add userspace ABI for audio userspace application IO outside of regular
ALSA PCM and kcontrols. This is intended to be used to format
coefficients and data for custom processing components.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
(cherry picked from commit 313a170888a16f1ee933bb17db6ae89893d9ec94)
Link:https://github.com/thesofproject/linux/commit/313a170888a16f1ee933bb17db6ae89893d9ec94


Signed-off-by: Samaga Prasanna Krishna <samaga.krishna@intel.corp-partner.google.com>

BUG=b:110025789
TEST=Test Audio use cases after full SOF series patches are applied.

Change-Id: I29b4c670918cfe581fb8381c6727bd1f1193866e
Reviewed-on: https://chromium-review.googlesource.com/1120609


Commit-Ready: Curtis Malainey <cujomalainey@chromium.org>
Tested-by: Curtis Malainey <cujomalainey@chromium.org>
Reviewed-by: Curtis Malainey <cujomalainey@chromium.org>