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/FileExplorerLib/FileExplorerLib.inf

@@ -1,15 +1,15 @@
 ## @file
 #  library defines a set of interfaces for how to do file explorer.
-#  
-#  Copyright (c) 2011 - 2017, Intel Corporation. All rights reserved.<BR>
+#
+#  Copyright (c) 2011 - 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 that 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.
-#  
+#
 ##
 [Defines]
   INF_VERSION                    = 0x00010005
@@ -52,7 +52,7 @@
 [Guids]
   gEfiFileSystemVolumeLabelInfoIdGuid           ## SOMETIMES_CONSUMES ## GUID (Indicate the information type is volume)
   gEfiIfrTianoGuid                              ## SOMETIMES_CONSUMES ## GUID (Extended IFR Guid Opcode)
- 
+
 [Protocols]
   gEfiSimpleFileSystemProtocolGuid              ## SOMETIMES_CONSUMES
   gEfiHiiConfigAccessProtocolGuid               ## PRODUCES
@@ -60,4 +60,4 @@
   gEfiDevicePathToTextProtocolGuid              ## PRODUCES
 
 [Depex.common.DXE_DRIVER]
-  gEfiFormBrowser2ProtocolGuid AND gEfiHiiDatabaseProtocolGuid
+  gEfiFormBrowser2ProtocolGuid AND gEfiHiiDatabaseProtocolGuid