staging: unisys: refactor pause_device()

Fix the function declaration so it is on a single line. Fix CamelCase local
variables:

busNo => bus_no
devNo => dev_no

Fix use of uuid_le_cmp() to check for 0 instead of using !uuid_le_cmp().

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