staging: unisys: Fix CamelCase in uislib_client_inject_add_vhba()

Clean up CamelCase names:
busNo => bus_no
devNo => dev_no
instGuid => inst_uuid

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