Description of problem:

In the DNS configuration section we have a note that the DNS config cannot be applied to br-ex because modifying the profile is not allowed. However, it was just reported that this also applies to custom routes with next-hop-interface pointing at br-ex. This breaks the network config in a similar way to applying a DNS config to br-ex.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:

    1. Apply NMState route config with next-hop-interface set to br-ex
    2.
    3.
    

Actual results:

    Host networking fails

Expected results:

    Route is applied successfully

Additional info:

    This will not apply to clusters using the custom NMState br-ex feature because in that case there is no conflict with configure-ovs.