OvmfPkg: strip trailing whitespace

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Anthony Perard <anthony.perard@citrix.com>
Cc: Julien Grall <julien.grall@arm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>

OvmfPkg/AcpiTables/Facs.aslc

@@ -1,10 +1,10 @@
 /** @file
   FACS Table
-  
+
   Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
-**/ 
+**/
 
 #include <IndustryStandard/Acpi.h>
 
@@ -70,7 +70,7 @@ ReferenceAcpiTable (
   )
 {
   //
-  // Reference the table being generated to prevent the optimizer from removing the 
+  // Reference the table being generated to prevent the optimizer from removing the
   // data structure from the exeutable
   //
   return (VOID*)&FACS;