OmvfPkg/HashLibTdx: Add HashLibTdx

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4752

This library is the one of SecurityPkg/Library/HashLibTdx. It is
designed for Intel TDX enlightened OVMF. So moving it from SecurityPkg
to OvmfPkg. To prevent breaking the build, the moving is splitted into 2
patch. SecurityPkg/Library/HashLibTdx will be deleted in the next patch.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>

OvmfPkg/Library/HashLibTdx/HashLibTdx.inf

@@ -0,0 +1,37 @@
+## @file
+#  Provides hash service by registered hash handler in Tdx.
+#
+#  This library is HashLib for Tdx. Currently only SHA384 is supported.
+#
+# Copyright (c) 2020 - 2021, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = HashLibTdx
+  FILE_GUID                      = 77F6EA3E-1ABA-4467-A447-926E8CEB2D13
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = HashLib|SEC DXE_DRIVER
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = X64
+#
+
+[Sources]
+  HashLibTdx.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  SecurityPkg/SecurityPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  BaseMemoryLib
+  DebugLib
+  PcdLib
+  TdxLib