sof-bdw-rt5677: initial port to UCM2

[GitHub pull_request - opened]

alsa-project/alsa-ucm-conf pull request #13 was opened from plbossart:

Tested on Pixel 2015/SAMUS Chromebook.

Known limitations:
Left/Right confusion (probably a firmware issue)
PulseAudio does not switch capture devices on headset plug

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>

Request URL   : https://github.com/alsa-project/alsa-ucm-conf/pull/13
Patch URL     : https://github.com/alsa-project/alsa-ucm-conf/pull/13.patch
Repository URL: https://github.com/alsa-project/alsa-ucm-conf