We used to have flaky PECI temperature read so we ignored failure. Now
the PECI temperature read seems to work fine so we should have it report
error on failure.
Signed-off-by: Vic Yang <victoryang@chromium.org>
BUG=chrome-os-partner:7493
TEST=When powered off, 'temps' shows error on PECI temperature reading.
Change-Id: I161a8f84f66ba06959c21838ee364b2f8d8b4945