Comment 8 for bug 1838535

Reviewed: https://review.opendev.org/699642
Committed: https://git.openstack.org/cgit/openstack/networking-ovn/commit/?id=b5ca90feacd467a8991fb42bae7d2b4c0095fa5d
Submitter: Zuul
Branch: stable/train

commit b5ca90feacd467a8991fb42bae7d2b4c0095fa5d
Author: Lucas Alvares Gomes <email address hidden>
Date: Wed Jul 31 13:41:34 2019 +0100

    Only set "unknown" in LSP that makes sense

    Prior to this patch, the "unknown" address was being set the logical
    switch ports solely based on whether the port security was enabled or
    disabled. That's not how it's intended to work.

    With this patch the "unknown" address is only set to the normal logical
    switch ports, those which types are "router", "localnet" or "localport"
    won't be affected.

    The maintenance task was updated to correct this behavior for existing
    ports (the maintenance was suppose to be removed in the T cycle, this
    patch bumps it to U cycle instead due to this change).

    Closes-Bug: #1838535
    Related-Bug: #1815270
    Change-Id: I3c01bd7d1685c8a7e13a55e545e98baf19e9a0f9
    Signed-off-by: Lucas Alvares Gomes <email address hidden>
    (cherry picked from commit 6a89dbfe47ae1f384e08fede3bb6afae2ada7b9c)