UefiCpuPkg: Simplify InitializeSeparateExceptionStacks

Hide the Exception implementation details in CpuExcetionHandlerLib and
caller only need to provide buffer

Cc: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com>

UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiCpuExceptionHandlerLib.inf

@@ -1,7 +1,7 @@
 ## @file
 #  CPU Exception Handler library instance for PEI module.
 #
-#  Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
+#  Copyright (c) 2016 - 2022, Intel Corporation. All rights reserved.<BR>
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
 ##
@@ -56,6 +56,8 @@
 
 [Pcd]
   gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard    # CONSUMES
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuKnownGoodStackSize
+  gUefiCpuPkgTokenSpaceGuid.PcdCpuStackSwitchExceptionList
 
 [FeaturePcd]
   gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmStackGuard                    ## CONSUMES