Enable support for Marvell Ethernet PHYs on A37xx platforms
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com> Cc: Stefan Roese <sr@denx.de> Cc: Igal Liberman <igall@marvell.com> Cc: Nadav Haklai <nadavh@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>