faft: Call the setup methods of their superclasses on EC FAFT

Should call the setup methods of their superclasses first. Otherwise,
some variables may not be initialized.

BUG=chrome-os-partner:14158,chrome-os-partner:14161,chrome-os-partner:14162
TEST=run_remote_tests.sh --remote=$IP suite:faft_ec

Change-Id: Ie93f3a6bba42a1f4bcaffd6020e2c23ef7214964
Reviewed-on: https://gerrit.chromium.org/gerrit/33480
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
Reviewed-by: Mike Truty <truty@chromium.org>
11 files changed