REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3794 This change introduces a new error code definitions under Host Software class according to PI specification v1.8. The new error code definition will cover system reboot events under the conditions of inconsistent memory map from one boot to another. These error codes could provide helpful datapoints to OEMs to investigate and prevent system failures in general. 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: Kun Qin <kuqin12@gmail.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>