BaseTools: Fix the bug to display the single SKUID info

when defined SKUID_IDENTIFIER = DEFAULT|TEST in DSC [Defines] section,
per spec it means current SKUID is single, the bug is build report print
both DEFAULT and TEST info, it should only print TEST.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

BaseTools/Source/Python/Common/Misc.py

@@ -2239,6 +2239,10 @@ class SkuClass():
             GlobalData.gSkuids = (self.SkuIdSet)
             if 'COMMON' in GlobalData.gSkuids:
                 GlobalData.gSkuids.remove('COMMON')
+            if self.SkuUsageType == self.SINGLE:
+                if len(GlobalData.gSkuids) != 1:
+                    if 'DEFAULT' in GlobalData.gSkuids:
+                        GlobalData.gSkuids.remove('DEFAULT')
             if GlobalData.gSkuids:
                 GlobalData.gSkuids.sort()