forked from Mirrors/opensbi

Function fw_next_arg1 in firmware/fw_jump.S:59 and firmware/fw_payload.S:63 should return real dtb address(if specified in a1) in a0, in case we don't want to specify FW_xyz_FDT_ADDR when compiling. Signed-off-by: Liu Yibin <yibin_liu@c-sky.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>