Stout UCM/alsa-conf: Add ucm and alsa conf & fw for stout32

BUG=chromium:302794
TEST=gmerge adhd on stout32. verify files present:
- /usr/share/alsa/ucm/HDA Intel PCH
- /etc/modprobe.d/alsa-stout32.conf
- /lib/firmware/stout32_alsa.fw

Change-Id: I19599376adb2baa6a688154e71d82848700f538c
Reviewed-on: https://chromium-review.googlesource.com/172053
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Hsinyu Chao <hychao@chromium.org>
Tested-by: Hsinyu Chao <hychao@chromium.org>
3 files changed