Adjust infra_ServoDiagnosis to account for chromeboxes.

Because of a recent change, devices without a lid (i.e. chromeboxes)
now report lid_open:not_applicable for their lid status.  This
change accounts for that change to allow distinguishing "lid stuck
closed" from "device has no lid" in infra_ServoDiagnosis.

BUG=None
TEST=None

Change-Id: I84b4e1156d5260a053290128e0b0cc63376b34dc
Reviewed-on: https://chromium-review.googlesource.com/217409
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Richard Barnette <jrbarnette@chromium.org>
1 file changed