Implement operations to get and set flow-control link parameters. Both is done by simply calling phylink_ethtool_{get,set}_pauseparam(). Fix whitespace in mtk_ethtool_ops while at it. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Tested-by: Rui Salvaterra <rsalvaterra@gmail.com> Link: https://patch.msgid.link/e3ece47323444631d6cb479f32af0dfd6d145be0.1720088047.git.daniel@makrotopia.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>