dts: marvell: Enable 10G interfaces on 9130-DB and 9131-DB boards

This patch enables eth0 10G interface on CN9130-DB paltforms and
eth0 10G and eth3 10G interfaces on CN9131-DB.

Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>