MdeModulePkg: 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>
Reviewed-by: Star Zeng <star.zeng@intel.com>

MdeModulePkg/Library/PeiS3LibNull/PeiS3LibNull.inf

@@ -2,15 +2,15 @@
 #  Null S3 library instance for PEIM module.
 #  This library instance is no longer used and module using this library
 #  class should update to directly locate EFI_PEI_S3_RESUME_PPI defined
-#  in PI 1.2 specification. 
-#  
-#  Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+#  in PI 1.2 specification.
+#
+#  Copyright (c) 2006 - 2018, 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
 #  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.
 #