nfp: implement ethtool .get_link() callback

Point the ethtool .get_link() callback to the standard
ethtool_op_get_link() implementation.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed