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/Library/PlatformSecureLib/PlatformSecureLib.c

@@ -10,7 +10,7 @@
 /**
 
   This function provides a platform-specific method to detect whether the platform
-  is operating by a physically present user. 
+  is operating by a physically present user.
 
   Programmatic changing of platform security policy (such as disable Secure Boot,
   or switch between Standard/Custom Secure Boot mode) MUST NOT be possible during
@@ -19,7 +19,7 @@
 
   NOTE THAT: This function cannot depend on any EFI Variable Service since they are
   not available when this function is called in AuthenticateVariable driver.
-  
+
   @retval  TRUE       The platform is operated by a physically present user.
   @retval  FALSE      The platform is NOT operated by a physically present user.