if system both exist gUefiAcpiBoardInfoGuid and rsdp, we may need to use gUefiAcpiBoardInfoGuid as final config to have backward support. Cc: Guo Dong <guo.dong@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Sean Rhodes <sean@starlabs.systems> Reviewed-by: James Lu <james.lu@intel.com> Signed-off-by: Gua Guo <gua.guo@intel.com>