riscv: mbv: Align DT with QEMU

Align U-Boot with QEMU amd-microblaze-v-virt platform to be able to wire
it with CI.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Padmarao Begari <padmarao.begari@amd.com>
3 files changed