Optofidelity: Adjustments for one-off tests

This CL makes some minor tweaks to get the system up and running
again for one-off tests only.

BUG=None

Change-Id: I2b4a56564ed5d46dcab11b3081b7dda4052917b9
Reviewed-on: https://chromium-review.googlesource.com/336539
Commit-Ready: Dennis Kempin <denniskempin@chromium.org>
Tested-by: Dennis Kempin <denniskempin@chromium.org>
Reviewed-by: Dennis Kempin <denniskempin@chromium.org>