SourceLevelDebugPkg: 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: Hao Wu <hao.a.wu@intel.com>

SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Pei.c

@@ -179,7 +179,7 @@ Usb3GetIoMmu (
 /**
   Return USB3 debug instance address pointer.
 
-**/  
+**/
 EFI_PHYSICAL_ADDRESS *
 GetUsb3DebugPortInstanceAddrPtr (
   VOID
@@ -221,7 +221,7 @@ GetUsb3DebugPortInstanceAddrPtr (
   Allocate aligned memory for XHC's usage.
 
   @param BufferSize     The size, in bytes, of the Buffer.
-  
+
   @return A pointer to the allocated buffer or NULL if allocation fails.
 
 **/