UefiCpuPkg/PiSmmCpuDxeSmm: Move GetAcpiS3EnableFlag into DxeSmm code

MM can not use the dynamic PCD, so, Move GetAcpiS3EnableFlag into
DxeSmm code. This can make PiSmmCpuEntryCommon to be a function
for SMM and MM.

Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Dun Tan <dun.tan@intel.com>
Cc: Hongbin1 Zhang <hongbin1.zhang@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>
Cc: Yuanhao Xie <yuanhao.xie@intel.com>

UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c

@@ -248,15 +248,3 @@ InitSmmS3ResumeState (
     InitSmmS3Cr3 ((UINTN *)&SmmS3ResumeState->SmmS3Cr3);
   }
 }
-
-/**
-  Get ACPI S3 enable flag.
-
-**/
-VOID
-GetAcpiS3EnableFlag (
-  VOID
-  )
-{
-  mAcpiS3Enable = PcdGetBool (PcdAcpiS3Enable);
-}

UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuCommon.h

@@ -269,6 +269,7 @@ extern UINT8  mSmmSaveStateRegisterLma;
 
 extern BOOLEAN  mBtsSupported;
 extern UINTN    mMsrDsAreaSize;
+extern BOOLEAN  mAcpiS3Enable;
 
 #define PAGE_TABLE_POOL_ALIGNMENT   BASE_128KB
 #define PAGE_TABLE_POOL_UNIT_SIZE   BASE_128KB

UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.c

@@ -11,6 +11,18 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 
 #include "PiSmmCpuCommon.h"
 
+/**
+  Get ACPI S3 enable flag.
+
+**/
+VOID
+GetAcpiS3EnableFlag (
+  VOID
+  )
+{
+  mAcpiS3Enable = PcdGetBool (PcdAcpiS3Enable);
+}
+
 /**
   Extract NumberOfCpus, MaxNumberOfCpus and EFI_PROCESSOR_INFORMATION for all CPU from gEfiMpServiceProtocolGuid.