staging: fsl-dpaa2/ethsw: remove debug message

Since ethtool will be loud enough if the .set_link_ksettings() callback
fails, remove the debug messages which do not add additional
information.

Reported-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/1565700187-16048-5-git-send-email-ioana.ciornei@nxp.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>