FROMLIST: ASoC: SOF: Add Sound Open Firmware KControl support

SOF exposes regular ALSA Kcontrols that are defined by topology. This
patch converts the Kcontrol IO to DSP IPC.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
(cherry picked from commit 84e9ef8e66675490393162f8e488468f2b3859c8)
Link:https://github.com/thesofproject/linux/commit/84e9ef8e66675490393162f8e488468f2b3859c8


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: Iff03bf45fcb6efaad234fb4c8290bc85ef7c1269
Reviewed-on: https://chromium-review.googlesource.com/1120586


Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Curtis Malainey <cujomalainey@chromium.org>
Reviewed-by: Curtis Malainey <cujomalainey@chromium.org>