greybus: fix the guard in "greybus_manifest.h"

The tag in the #ifndef guard surrounding the content of
"greybus_manifest.h" needs to be updated to reflect the
actual name of the file.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/greybus_manifest.h

@@ -9,8 +9,8 @@
  * Released under the GPLv2 only.
  */
 
-#ifndef __GREYBUS_DESC_H
-#define __GREYBUS_DESC_H
+#ifndef __GREYBUS_MANIFEST_H
+#define __GREYBUS_MANIFEST_H
 
 #pragma pack(push, 1)
 
@@ -95,4 +95,4 @@ struct greybus_manifest {
 
 #pragma pack(pop)
 
-#endif /* __GREYBUS_DESC_H */
+#endif /* __GREYBUS_MANIFEST_H */