configs: starfive: Enable ethernet configuration for StarFive VisionFive2

Enable DWC_ETH_QOS and PHY_MOTORCOMM configuration to support ethernet
function for StarFive VisionFive 2 board,including versions 1.2A and
1.3B.

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
1 file changed