Merge branch 'net-dsa-microchip-add-mtu-support-for-ksz8-series'

Oleksij Rempel says:

====================
net: dsa: microchip: add MTU support for KSZ8 series
====================

Link: https://lore.kernel.org/r/20221205052232.2834166-1-o.rempel@pengutronix.de


Signed-off-by: Paolo Abeni <pabeni@redhat.com>