UefiCpuPkg: 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>

UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmmFuncsArch.c

@@ -1,6 +1,6 @@
 /** @file
   SMM CPU misc functions for x64 arch specific.
-  
+
 Copyright (c) 2015 - 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
@@ -40,7 +40,7 @@ InitializeIDTSmmStackGuard (
 
 /**
   Initialize Gdt for all processors.
-  
+
   @param[in]   Cr3          CR3 value.
   @param[out]  GdtStepSize  The step size for GDT table.