staging: unisys: fix CamelCase list names

Rename the CamelCased list names:

BusInfoList => bus_info_list
DevInfoList => dev_info_list

Update all references to use the fixed names.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>