MdePkg: Added LoongArch jump buffer register definition to MdePkg.ci.yaml

MdePkg: Added LoongArch jump buffer register definition to MdePkg.ci.yaml

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053

If the new Arch register is defined in BaseLib.h when running
the CI tests, it will give an ECC check error. Add the
LoongArch register defined in the ExceptionList field to make
the CI ECC check pass.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>