ethtool: Add support for 2500baseT/5000baseT link modes

This patch introduce ethtool support for 2500BaseT and 5000BaseT link modes
from new IEEE 802.3bz standard.

ethtool-copy.h file sync with net.

Signed-off-by: Pavel Belous <pavel.s.belous@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
3 files changed