staging: fsl-dpaa2/ethsw: add line terminator to all formats

Add the '\n' line terminator to the string formats missing it.

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/1565700187-16048-4-git-send-email-ioana.ciornei@nxp.com


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