libefivar: 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

Adapted according to FreeBSD-update instructions, with the sole purpose
of reducing the differences with upstream sources.

Obtained from:	9095d37b8f
Pull Request:   https://github.com/freebsd/freebsd-src/pull/581

lib/libefivar/efivar-dp-format.c

@@ -50,7 +50,6 @@ __FBSDID("$FreeBSD$");
 
 /*
  * Taken from MdePkg/Library/UefiDevicePathLib/DevicePathToText.c
- * hash a11928f3310518ab1c6fd34e8d0fdbb72de9602c 2017-Mar-01
  * heavily modified:
  *	wide strings converted to narrow
  *	Low level printing code redone for narrow strings

lib/libefivar/efivar-dp-parse.c

@@ -58,7 +58,6 @@ __FBSDID("$FreeBSD$");
 
 /*
  * Taken from MdePkg/Library/UefiDevicePathLib/DevicePathFromText.c
- * hash a11928f3310518ab1c6fd34e8d0fdbb72de9602c 2017-Mar-01
  */
 
 /** @file

lib/libefivar/uefi-dplib.h

@@ -27,13 +27,12 @@
 
 /*
  * Taken from MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.h
- * hash a11928f3310518ab1c6fd34e8d0fdbb72de9602c 2017-Mar-01
  */
 
 /** @file
   Definition for Device Path library.
 
-Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2013 - 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
@@ -549,7 +548,7 @@ static inline void *
 AllocateCopyPool(size_t l, const void *p)
 {
 	void *rv;
-		
+
 	rv = malloc(l);
 	if (rv == NULL)
 		return NULL;