Handle situations when no hardware info (sysinfo) is present.

This will occur when some tests are run with disable_sysinfo=True.

BUG=chromium-os:36177
TEST=remove sysinfo folders
     notice empty display
     apply patch
     notice full display of results

Change-Id: I03ea06345aa3faa5d3de938374b1ae2f2325598f
Reviewed-on: https://gerrit.chromium.org/gerrit/37946
Reviewed-by: Yusuf Mohsinally <mohsinally@google.com>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Commit-Ready: Mike Truty <truty@chromium.org>
Tested-by: Mike Truty <truty@chromium.org>
1 file changed