SecurityPkg: Create library for enrolling Secure Boot variables.

This commits add library, which consist functions to
enrolll Secure Boot keys and initialize Secure Boot
default variables. Some of the functions was moved
 from SecureBootConfigImpl.c file.

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Reviewed-by: Sunny Wang <sunny.wang@arm.com>
Reviewed-by: Jiewen Yao <Jiewen.yao@intel.com>

SecurityPkg/Library/SecureBootVariableProvisionLib/SecureBootVariableProvisionLib.inf

@@ -0,0 +1,79 @@
+## @file
+#  Provides initialization of Secure Boot keys and databases.
+#
+#  Copyright (c) 2021, ARM Ltd. All rights reserved.<BR>
+#  Copyright (c) 2021, Semihalf All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = SecureBootVariableLib
+  MODULE_UNI_FILE                = SecureBootVariableLib.uni
+  FILE_GUID                      = 18192DD0-9430-45F1-80C7-5C52061CD183
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = SecureBootVariableProvisionLib|DXE_DRIVER DXE_RUNTIME_DRIVER UEFI_APPLICATION
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 AARCH64
+#
+
+[Sources]
+  SecureBootVariableProvisionLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  SecurityPkg/SecurityPkg.dec
+  CryptoPkg/CryptoPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  BaseMemoryLib
+  DebugLib
+  MemoryAllocationLib
+  BaseCryptLib
+  DxeServicesLib
+  SecureBootVariableLib
+
+[Guids]
+  ## CONSUMES            ## Variable:L"SetupMode"
+  ## PRODUCES            ## Variable:L"SetupMode"
+  ## CONSUMES            ## Variable:L"SecureBoot"
+  ## PRODUCES            ## Variable:L"SecureBoot"
+  ## PRODUCES            ## Variable:L"PK"
+  ## PRODUCES            ## Variable:L"KEK"
+  ## CONSUMES            ## Variable:L"PKDefault"
+  ## CONSUMES            ## Variable:L"KEKDefault"
+  ## CONSUMES            ## Variable:L"dbDefault"
+  ## CONSUMES            ## Variable:L"dbxDefault"
+  ## CONSUMES            ## Variable:L"dbtDefault"
+  gEfiGlobalVariableGuid
+
+  ## SOMETIMES_CONSUMES  ## Variable:L"DB"
+  ## SOMETIMES_CONSUMES  ## Variable:L"DBX"
+  ## SOMETIMES_CONSUMES  ## Variable:L"DBT"
+  gEfiImageSecurityDatabaseGuid
+
+  ## CONSUMES            ## Variable:L"SecureBootEnable"
+  ## PRODUCES            ## Variable:L"SecureBootEnable"
+  gEfiSecureBootEnableDisableGuid
+
+  ## CONSUMES            ## Variable:L"CustomMode"
+  ## PRODUCES            ## Variable:L"CustomMode"
+  gEfiCustomModeEnableGuid
+
+  gEfiCertTypeRsa2048Sha256Guid  ## CONSUMES
+  gEfiCertX509Guid               ## CONSUMES
+  gEfiCertPkcs7Guid              ## CONSUMES
+
+  gDefaultPKFileGuid
+  gDefaultKEKFileGuid
+  gDefaultdbFileGuid
+  gDefaultdbxFileGuid
+  gDefaultdbtFileGuid