staging: keucr: Removed trailing whitespaces

Fixed a coding style issue. Removed trailing
whitespaces in code.
Signed-off-by: Kurt Kanzenbach <shifty91@gmail.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>