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/Universal/BdsDxe/HwErrRecSupport.c

@@ -2,7 +2,7 @@
   Set the level of support for Hardware Error Record Persistence that is
   implemented by the platform.
 
-Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2007 - 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
@@ -28,9 +28,9 @@ InitializeHwErrRecSupport (
 {
   EFI_STATUS    Status;
   UINT16        HardwareErrorRecordLevel;
-  
+
   HardwareErrorRecordLevel = PcdGet16 (PcdHardwareErrorRecordLevel);
-  
+
   if (HardwareErrorRecordLevel != 0) {
     //
     // If level value equal 0, no need set to 0 to variable area because UEFI specification