Add error check for the same Guid/Protocol/PPIs/Includes defined as both
Private and non-Private attribute.
Fixes: https://bugzilla.tianocore.org/show_bug.cgi?id=209
Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>