Do not generate silly ssh warning while checking for cherrypi

BUG=None
TEST=Tested in nightly testing

Change-Id: Ia46a0cbb34890a0cb1222f16157c7c98179ec033
Reviewed-on: https://chrome-internal-review.googlesource.com/160769
Reviewed-by: Caroline Tice <cmtice@google.com>
Reviewed-by: Luis Lozano <llozano@chromium.org>
Commit-Queue: Luis Lozano <llozano@chromium.org>
Tested-by: Luis Lozano <llozano@chromium.org>
1 file changed