Fix incorrect exception catch in host cleanup.

In cleanup error.AutoservRunError was being caught to check whether or not
the 'restart ui' pathway on a DUT was successful. This was a typoe and should have
been error.AutotestRunError.

BUG=None
TEST=Ran cleanup on a host that is currently down in the lab and watched it reboot.

Change-Id: I036fe8f6293fadc49c66a430ebe3813a8c4f7f66
Reviewed-on: https://gerrit.chromium.org/gerrit/42508
Reviewed-by: Scott Zawalski <scottz@chromium.org>
Tested-by: Scott Zawalski <scottz@chromium.org>
1 file changed