lightbar: hide program command over console
lightbar: hide program command over console

This doesn't make any sense to expose to the console, so we can
save some logic and string literals by only compiling it for the
simulator.

BUG=chrome-os-partner:32203
BRANCH=ToT
TEST=Checked console does not support command. ectool still
  works and the lightbar simulator still has the command.

Signed-off-by: Eric Caruso <ejcaruso@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/220834
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
(cherry picked from commit d3ebcb18caabe9eb96383fa33edd501061bae7e0)
Signed-off-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

Change-Id: Ib216c7c11fd3d0d2d444ef7fc0dda4e451103219
Reviewed-on: https://chromium-review.googlesource.com/221158
Tested-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Reviewed-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Commit-Queue: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

thehobn/ec,thehobn/ec,thehobn/ec,thehobn/ec