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Description of problem:
OpenShift Container Platform (OCP) uses Network Manager for host networking configuration. In OCP 4.6 (next release) we need the ability for NM to configure an OVS bridge (br-ex) and attach the host physical NIC to the bridge, while also moving the L3 IP addressing (that was previously done on the NIC) to the br-ex ovs interface. This is supported today in RHCOS via fixes that were done for RHEL 8.3/8.2z:

https://bugzilla.redhat.com/show_bug.cgi?id=1852106
https://bugzilla.redhat.com/show_bug.cgi?id=1820052

This works fine for RHCOS today and fixes the previous issues. With OCP, RHCOS is the default operating system used in deployments. However, OCP also supports the option to bring your own RHEL 7.x worker nodes. This means that a customer may choose to use RHEL 7.x as part of an OCP deployment. Therefore those nodes will also be managed by NM and have the same OVS configuration previously mentioned. This BZ is specifically requesting backports for the aforementioned fixes 1852106 and 1820052 into 7.9z.

Let's do a 7.9-Z-stream update for this, as this affects OCP.

CI reproducers passing:
https://beaker.engineering.redhat.com/jobs/4604450
https://beaker.engineering.redhat.com/jobs/4604449
https://beaker.engineering.redhat.com/jobs/4604405

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (NetworkManager bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:5025