staging: unisys: visorbus: remove fix_vbus_dev_info prototype

Move the visordriver_probe_device and visorbus_register_visor_driver
functions lower in the file to get rid of the function prototype
fix_vbus_dev_info.
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>