Added LibPatchPcdSetPtr.

Cleaup Pcd Database code generation routine.
Fixed a few bugs.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@745 6f19259b-4bc3-4df7-8a09-765794883524

EdkModulePkg/Universal/PCD/Dxe/Service.c

@@ -102,7 +102,6 @@ GetWorker (
 
       Status = GetHiiVariable (Guid, Name, &Data, &DataSize);
       if (Status == EFI_SUCCESS) {
-        ASSERT (DataSize >= (UINTN) (VariableHead->Offset + Size));
         return (UINT8 *) Data + VariableHead->Offset;
       } else {
         //

EdkModulePkg/Universal/PCD/Pei/Service.c

@@ -16,7 +16,6 @@ Module Name: Service.c
 **/
 #include "Service.h"
 
-
 /**
   The function registers the CallBackOnSet fucntion
   according to TokenNumber and EFI_GUID space.
@@ -496,7 +495,6 @@ GetWorker (
       Status = GetHiiVariable (Guid, Name, &Data, &DataSize);
 
       if (Status == EFI_SUCCESS) {
-        ASSERT (DataSize >= (UINTN) (VariableHead->Offset + Size));
         return (VOID *) ((UINT8 *) Data + VariableHead->Offset);
       } else {
         //