MdeModulePkg: StatusCodeHandler: StatusCodeHandler driver in StandaloneMm

This change added support of StandaloneMm for StatusCodeHandler. It
adds a new instance of StatusCodeHandler of MM_STANDALONE type, and
abstracts the driver entrypoint into separate files, replaced gSmst with
gMmst, and switched to MM version of RscHandlerProtocol.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Jiewen Yao <jiewen.yao@intel.com>

Signed-off-by: Kun Qin <kun.q@outlook.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>

MdeModulePkg/Universal/StatusCodeHandler/Smm/StatusCodeHandlerStandaloneMm.inf

@@ -0,0 +1,63 @@
+## @file
+#  Status Code Handler Driver which produces general handlers and hook them onto the MM status code router.
+#
+#  Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
+#  (C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
+#  Copyright (c) Microsoft Corporation.
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = StatusCodeHandlerStandaloneMm
+  FILE_GUID                      = EBE7802F-5E11-4D4E-B463-22D2425D156B
+  MODULE_TYPE                    = MM_STANDALONE
+  PI_SPECIFICATION_VERSION       = 0x00010032
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = StatusCodeHandlerStandaloneMmEntry
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64
+#
+
+[Sources]
+  StatusCodeHandlerMm.c
+  StatusCodeHandlerMm.h
+  StatusCodeHandlerStandalone.c
+  SerialStatusCodeWorker.c
+  MemoryStatusCodeWorker.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+  SerialPortLib
+  MmServicesTableLib
+  StandaloneMmDriverEntryPoint
+  PcdLib
+  PrintLib
+  ReportStatusCodeLib
+  DebugLib
+  MemoryAllocationLib
+  BaseMemoryLib
+
+[Guids]
+  gEfiStatusCodeDataTypeStringGuid              ## SOMETIMES_CONSUMES   ## UNDEFINED
+  gMemoryStatusCodeRecordGuid                   ## SOMETIMES_PRODUCES   ## UNDEFINED # MmSystemTable
+
+[Protocols]
+  gEfiMmRscHandlerProtocolGuid                  ## CONSUMES
+
+[Pcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeUseSerial ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeUseMemory ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeMemorySize |128| gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeUseMemory   ## SOMETIMES_CONSUMES
+
+[Depex]
+  gEfiMmRscHandlerProtocolGuid