[Patch] BaseTools: Fix a bug about list the PCD in "not used" section

[Yonghong Zhu <yonghong.zhu@intel.com>]

From: zhijufan <zhijux.fan@intel.com>

Defined a pcd in Ovmf.dec and used that pcd in AcpiPlatformDxe.inf,
then assign a value to that pcd from DSC, then build Ovmf platform
successfully. But this Pcd was wrongly listed into not used section
in the report.txt file.

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
---
 BaseTools/Source/Python/build/BuildReport.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/BaseTools/Source/Python/build/BuildReport.py b/BaseTools/Source/Python/build/BuildReport.py
index deb88a7..a598d64 100644
--- a/BaseTools/Source/Python/build/BuildReport.py
+++ b/BaseTools/Source/Python/build/BuildReport.py
@@ -817,10 +817,13 @@ class PcdReport(object):
                         if (Pcd.TokenCName, Pcd.TokenSpaceGuidCName, PcdType) in package.Pcds:
                             Pcd.DatumType = package.Pcds[(Pcd.TokenCName, Pcd.TokenSpaceGuidCName, PcdType)].DatumType
                             break
 
                 PcdList = self.AllPcds.setdefault(Pcd.TokenSpaceGuidCName, {}).setdefault(Pcd.Type, [])
+                UnusedPcdList = self.UnusedPcds.setdefault(Pcd.TokenSpaceGuidCName, {}).setdefault(Pcd.Type, [])
+                if Pcd in UnusedPcdList:
+                    UnusedPcdList.remove(Pcd)
                 if Pcd not in PcdList and Pcd not in UnusedPcdFullList:
                     UnusedPcdFullList.append(Pcd)
                 if len(Pcd.TokenCName) > self.MaxLen:
                     self.MaxLen = len(Pcd.TokenCName)
 
-- 
2.6.1.windows.1