system host-lldp-agent-list does not report any lldp agents

[Andre Kantek]

Brief Description
-----------------
system host-lldp-agent-list controller-0 does not report any lldp agents

Severity
--------
Minor: System/Feature is usable with minor issue

Steps to Reproduce
------------------
Systems with SRIOV VF interfaces that generate link devices on the kernel and the lldpd json report put those interfaces prior to the registered host-ports will suffer with the problem

Expected Behavior
------------------
All valid agents/interfaces on the node should be shown

Actual Behavior
----------------
Empty list is shown on the command

Reproducibility
---------------
Reproducible

System Configuration
--------------------
Any, depend on node configuration

Branch/Pull Time/Commit
-----------------------
Starling-X master

Last Pass
---------

Timestamp/Logs
--------------

Test Activity
-------------
Regression Testing

Workaround
----------
n/a

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/config/+/800219

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/starlingx/config/+/800219
Committed: https://opendev.org/starlingx/config/commit/63615beaec526466a6ab3caa7772fe6b0bbaf499
Submitter: "Zuul (22348)"
Branch: master

commit 63615beaec526466a6ab3caa7772fe6b0bbaf499
Author: Andre Fernando Zanella Kantek <email address hidden>
Date: Fri Jul 9 08:23:28 2021 -0400

    System host-lldp-agent-list does not report any lldp agents

    In systems with SRIOV interfaces the kernel might have more link
    devices than the ones registered as host-ports. This is caused
    by the SRIOV-VF interfaces configuration. The lldp daemon does list
    them on its report, and the conductor should ignore those and process
    only the ones with a host-port.

    The correction is on the conductor's processing loop that was
    returning on the first non-match, preventing the analysis of all
    array elements.

    Closes-Bug: 1935680

    Signed-off-by: Andre Fernando Zanella Kantek <email address hidden>
    Change-Id: I436f74785b80ba544131b22dfaecc0cdfc1cabc7