query_apply: ethernet: ignore speed when auto-negotiation is true

- Update sanitize_desired_before_verify to change
  speed and duplex to None in desired interface when auto-negotiation is
  true.
- Add test case.

Resolves: https://issues.redhat.com/browse/RHEL-76268

Signed-off-by: Rahul Rajesh <rajeshrah22@gmail.com>