CNB94: update ethtool core to upstream v6.5

JIRA: https://issues.redhat.com/browse/RHEL-860

This is an update of the ethtool core to current upstream features and fixes for RHEL 9.4. The patches are from upstream v6.5 + one from v6.6-rc1.

Signed-off-by: Michal Schmidt mschmidt@redhat.com