BaseTools: Update BaseTools to pass VS2015 compiler

Fix some errors to pass VS2015 compiler.
1. warning C4456: declaration of xxx hides previous local declaration
2. warning C4005: 'UINT8_MAX': macro redefinition

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19768 6f19259b-4bc3-4df7-8a09-765794883524

BaseTools/Source/C/VfrCompile/VfrSyntax.g

@@ -1,7 +1,7 @@
 /*++ @file
 Vfr Syntax
 
-Copyright (c) 2004 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2004 - 2016, Intel Corporation. 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
@@ -23,6 +23,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 >>
 
 <<
+#ifdef UINT8_MAX
+#undef UINT8_MAX
+#endif
 #include "stdio.h"
 #include "PBlackBox.h"
 #include "DLexerBase.h"