BaseTools: Clean up source files

1. Do not use tab characters
2. No trailing white space in one line
3. All files must end with CRLF

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>

BaseTools/Source/C/Makefiles/NmakeSubdirs.bat

@@ -1,7 +1,7 @@
 @REM ## @file
 @REM # Makefile
 @REM #
-@REM # Copyright (c) 2007 - 2017, Intel Corporation. All rights reserved.<BR>
+@REM # Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
 @REM # This program and the accompanying materials
 @REM # are licensed and made available under the terms and conditions of the BSD License
 @REM # which accompanies this distribution.    The full text of the license may be found at
@@ -9,7 +9,7 @@
 @REM #
 @REM # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
 @REM # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-@REM # 
+@REM #
 
 @echo off
 setlocal