Added LoongArch64 CPU driver into CpuDxe. BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4734 Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Chao Li <lichao@loongson.cn> Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn> Co-authored-by: Dongyan Qian <qiandongyan@loongson.cn> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Ray Ni <ray.ni@intel.com>