uboot-phytec

board: mscc: jr2: Update MSCC Jaguar2 boards

In Jaguar2 SoC family there are 3 different pcb. Each of this needs
to configure the phys in different ways. Therefore implement the
function board_phy_config and based on pcb configure them accordingly.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>