UefiCpuPkg: Add CpuDxeRiscV64 module

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4076

This is copied from
edk2-platforms/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe
and added the RISCV_EFI_BOOT_PROTOCOL support.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Daniel Schaefer <git@danielschaefer.me>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Acked-by: Abner Chang <abner.chang@amd.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>

UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf

@@ -0,0 +1,68 @@
+## @file
+#  RISC-V CPU DXE module.
+#
+#  Copyright (c) 2022, Ventana Micro Systems Inc. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001001B
+  BASE_NAME                      = CpuDxeRiscV64
+  MODULE_UNI_FILE                = CpuDxeRiscV64.uni
+  FILE_GUID                      = BDEA19E2-778F-473C-BF82-5E38D6A27765
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = InitializeCpu
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  UefiCpuPkg/UefiCpuPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  BaseMemoryLib
+  CpuLib
+  DebugLib
+  DxeServicesTableLib
+  MemoryAllocationLib
+  UefiBootServicesTableLib
+  UefiDriverEntryPoint
+  UefiLib
+  CpuExceptionHandlerLib
+  HobLib
+  ReportStatusCodeLib
+  TimerLib
+  PeCoffGetEntryPointLib
+  RiscVSbiLib
+
+[Sources]
+  CpuDxe.c
+  CpuDxe.h
+
+[Protocols]
+  gEfiCpuArchProtocolGuid                       ## PRODUCES
+  gRiscVEfiBootProtocolGuid                     ## PRODUCES
+
+[Guids]
+  gIdleLoopEventGuid                            ## CONSUMES           ## Event
+
+[Ppis]
+  gEfiSecPlatformInformation2PpiGuid            ## UNDEFINED # HOB
+  gEfiSecPlatformInformationPpiGuid             ## UNDEFINED # HOB
+
+[Pcd]
+  gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard                       ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPropertyMask               ## CONSUMES
+  gEfiMdeModulePkgTokenSpaceGuid.PcdNullPointerDetectionPropertyMask    ## CONSUMES
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuStackSwitchExceptionList              ## CONSUMES
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuKnownGoodStackSize                    ## CONSUMES
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuCoreCrystalClockFrequency             ## CONSUMES
+
+[Depex]
+  TRUE
+
+[UserExtensions.TianoCore."ExtraFiles"]
+  CpuDxeRiscV64Extra.uni