staging: unisys: refactor CONTROLVM_PACKET_DEVICE_CONFIGURE

Remove the typedef from CONTROLVM_PACKET_DEVICE_CONFIGURE, in favor of
struct controlvm_packet_device_configure. Fix CamelCase names and update
all references to modified names.

busNo => bus_no
devNo => dev_no

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