Make PlatformInitPreMem independent to IntelSiliconPkg and IntelFsp2WrapperPkg (#293)

## Description

This driver is shared across different Silicon vendors. So it should not
use any Intel specific packages.

In order to achieve this, added a new lib `FspSupportLib` to isolate
silicon related PCDs

- [ ] Impacts functionality?
- [ ] Impacts security?
- [ ] Breaking change?
- [ ] Includes tests?
- [ ] Includes documentation?

## How This Was Tested

CI build passed.

## Integration Instructions

No additional change is required for the consuming platforms.

---------

Co-authored-by: Michael Kubacki <michael.kubacki@microsoft.com>

Author: PaddyDengKC

MinPlatformPkg/MinPlatformPkg.dsc

@@ -190,6 +190,7 @@
 
   MinPlatformPkg/PlatformInit/ReportFv/ReportFvPei.inf
   MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPreMem.inf
+  MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPreMemNonFsp.inf
   MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPostMem.inf
   MinPlatformPkg/PlatformInit/PlatformInitDxe/PlatformInitDxe.inf
   MinPlatformPkg/PlatformInit/PlatformInitSmm/PlatformInitSmm.inf

MinPlatformPkg/PlatformInit/PlatformInitPei/FspSupport.c

@@ -0,0 +1,17 @@
+/** @file FspSupport.c
+  Provides FSP mode selection value based on PcdFspModeSelection
+
+Copyright (c) Microsoft Corporation.
+SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <PiPei.h>
+
+UINT8
+EFIAPI
+FspGetModeSelection (
+  VOID
+  )
+{
+  return PcdGet8 (PcdFspModeSelection);
+}

MinPlatformPkg/PlatformInit/PlatformInitPei/FspSupportNull.c

@@ -0,0 +1,17 @@
+/** @file FspSupport.c
+  Provides FSP mode selection value based on PcdFspModeSelection
+
+Copyright (c) Microsoft Corporation.
+SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <PiPei.h>
+
+UINT8
+EFIAPI
+FspGetModeSelection (
+  VOID
+  )
+{
+  return 0;
+}

MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPreMem.c

@@ -47,6 +47,12 @@ GetPlatformMemorySize (
   IN OUT  UINT64                                 *MemorySize
   );
 
+UINT8
+EFIAPI
+FspGetModeSelection (
+  VOID
+  );
+
 /**
 
   This function checks the memory range in PEI.
@@ -516,7 +522,7 @@ PlatformInitPreMem (
 
   BuildMemoryTypeInformation ();
 
-  if ((!PcdGetBool (PcdFspWrapperBootMode)) || (PcdGet8 (PcdFspModeSelection) == 0)) {
+  if ((!PcdGetBool (PcdFspWrapperBootMode)) || (FspGetModeSelection () == 0)) {
     //
     // Install memory relating PPIs for EDKII native build and FSP dispatch mode
     //

MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPreMem.inf

@@ -51,6 +51,7 @@
 
 [Sources]
   PlatformInitPreMem.c
+  FspSupport.c
 
 [Ppis]
   gEfiPeiMemoryDiscoveredPpiGuid

MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPreMemNonFsp.inf

@@ -0,0 +1,68 @@
+### @file
+# Component information file for the Platform Init Pre-Memory PEI module.
+#
+# Copyright (c) 2017 - 2021, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) Microsoft Corporation.
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+###
+
+[Defines]
+  INF_VERSION                    = 0x00010017
+  BASE_NAME                      = PlatformInitPreMemNonFsp
+  FILE_GUID                      = BEB6F1A6-F6BC-4C34-AB32-F0390A428479
+  VERSION_STRING                 = 1.0
+  MODULE_TYPE                    = PEIM
+  ENTRY_POINT                    = PlatformInitPreMemEntryPoint
+
+[LibraryClasses]
+  BaseMemoryLib
+  BoardInitLib
+  DebugLib
+  HobLib
+  IoLib
+  MemoryAllocationLib
+  PeimEntryPoint
+  PeiServicesLib
+  TestPointCheckLib
+  TimerLib
+  SetCacheMtrrLib
+  ReportCpuHobLib
+
+[Packages]
+  MinPlatformPkg/MinPlatformPkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  MdePkg/MdePkg.dec
+
+[Pcd]
+  gMinPlatformPkgTokenSpaceGuid.PcdFspWrapperBootMode          ## CONSUMES
+  gMinPlatformPkgTokenSpaceGuid.PcdStopAfterDebugInit          ## CONSUMES
+  gMinPlatformPkgTokenSpaceGuid.PcdStopAfterMemInit            ## CONSUMES
+
+[FixedPcd]
+  gMinPlatformPkgTokenSpaceGuid.PcdPlatformEfiAcpiReclaimMemorySize  ## CONSUMES
+  gMinPlatformPkgTokenSpaceGuid.PcdPlatformEfiAcpiNvsMemorySize      ## CONSUMES
+  gMinPlatformPkgTokenSpaceGuid.PcdPlatformEfiReservedMemorySize     ## CONSUMES
+  gMinPlatformPkgTokenSpaceGuid.PcdPlatformEfiRtDataMemorySize       ## CONSUMES
+  gMinPlatformPkgTokenSpaceGuid.PcdPlatformEfiRtCodeMemorySize       ## CONSUMES
+
+[Sources]
+  PlatformInitPreMem.c
+  FspSupportNull.c
+
+[Ppis]
+  gEfiPeiMemoryDiscoveredPpiGuid
+  gEfiPeiMasterBootModePpiGuid                  ## PRODUCES
+  gEfiPeiBootInRecoveryModePpiGuid              ## PRODUCES
+  gPlatformInitTempRamExitPpiGuid               ## PRODUCES
+  gEfiPeiReadOnlyVariable2PpiGuid
+  gPeiBaseMemoryTestPpiGuid
+  gPeiPlatformMemorySizePpiGuid
+
+[Guids]
+  gEfiMemoryTypeInformationGuid
+  gEfiMemoryTypeMinimumAllocationGuid  #MU_CHANGE - Add minimum memory type allocations
+
+[Depex]
+  gEfiPeiReadOnlyVariable2PpiGuid