parport_cs: Fix memory leak in parport_config

parport_probe() alloc parport device 'info',
but while parport_config failed it does not free it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>