wilco: Get ec version info from sysfs

BUG=b:130438917
TEST=$ mosys ec info
google | wilco | 00.00.14

Cq-Depend: chromium:1617395
Change-Id: I7e69a7b93a7a65e885f3bbd0f74655f015fb2d5c
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1622886
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Nick Crews <ncrews@chromium.org>
1 file changed