configs: starfive: add starfive_visionfive2_defconfig

This is the initial basic config for StarFive VisionFive v2 board. It
includes consol, Norflash, sdio, ddr etc.

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
1 file changed