nmcli: accept certain IP settings on port connections

Commit bb850fda0e ('nmcli: connection: process port-type, type
and controller first') started correctly rejecting IP configuration
on port connections.

However, previously nmcli would accept IP parameters for ports when
using a specific parameters order. To avoid breaking user scripts that
may have relied on this behavior, introduce a backward compatibility
quirk.

Specifically, nmcli accepts a disabled/ignore IP method on a port
connection. For any other IP setting on a port connection, a specific
error message is now shown.

https://issues.redhat.com/browse/RHEL-90756
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/2227

tools/test-networkmanager-service.py

@@ -613,6 +613,7 @@ class NmUtil:
         if t not in [
             NM.SETTING_GSM_SETTING_NAME,
             NM.SETTING_MACVLAN_SETTING_NAME,
+            NM.SETTING_OVS_INTERFACE_SETTING_NAME,
             NM.SETTING_VLAN_SETTING_NAME,
             NM.SETTING_VPN_SETTING_NAME,
             NM.SETTING_WIMAX_SETTING_NAME,