https://bugzilla.tianocore.org/show_bug.cgi?id=542 This is pure BaseTools enhancement to support PCD with one structure. User can specify PCD value based on its structure field. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Liming Gao <liming.gao@intel.com> Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>