MdePkg/Library/BaseCpuLib: Enable VS2017/ARM64 builds

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Pete Batard <pete@akeo.ie>
Reviewed-by: Liming Gao <liming.gao@intel.com>

MdePkg/Library/BaseCpuLib/AArch64/CpuFlushTlb.asm

@@ -0,0 +1,39 @@
+;------------------------------------------------------------------------------
+;
+; CpuFlushTlb() for ARM
+;
+; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
+; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+; Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
+; This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution.  The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;------------------------------------------------------------------------------
+
+  EXPORT CpuFlushTlb
+  AREA BaseCpuLib_LowLevel, CODE, READONLY
+
+;/**
+;  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
+;
+;  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
+;
+;**/
+;VOID
+;EFIAPI
+;CpuFlushTlb (
+;  VOID
+;  );
+;
+CpuFlushTlb
+  tlbi  vmalle1                 // Invalidate Inst TLB and Data TLB
+  dsb   sy
+  isb
+  ret
+
+  END