ethernet: T5566: disable energy efficient ethernet (EEE) for interfaces
VyOS is a routing (packet pushing) platform, thus supporting EEE which
potentially causes issues is not a good idea. Some recent Intel drivers enable
EEE by default, thus we will disable this for every NIC supporting EEE.
(cherry picked from commit ab30509b25d54dac99294b76ba03fd49c3d2c946)