Comment 2 for bug 1860030

Reviewed: https://review.opendev.org/702968
Committed: https://git.openstack.org/cgit/starlingx/config/commit/?id=c22e5787c8308b61bb2d5feccd12e35110dcb558
Submitter: Zuul
Branch: master

commit c22e5787c8308b61bb2d5feccd12e35110dcb558
Author: Thomas Gao <email address hidden>
Date: Thu Jan 16 14:38:32 2020 -0500

    Verified types of errors for sriov test suites.

    Verification is done by checking whether certain messages
    are shown in the response.json['error_message']. The original
    error message "Unable to provision pci-sriov interface
    without configured mgmt interface" is promptly caught, causing
    the test to fail, as expected.

    Since the intended error message is supposed to be something
    that's not "Unable to provision pci-sriov interface without
    configured mgmt interface," I added mgmt interface
    configuration so the test won't fail.

    Closes-Bug: 1860030

    Change-Id: I6a2f11d6cf5b37166fc44b722deab47e696f9fd6
    Signed-off-by: Thomas Gao <email address hidden>