Staging: unisys: uislib: Cleanup sparse warnings in uislib

Clean up code to get rid of sparse warnings, mostly related to accessing I/O
space.

Remove uislibcmpxchg64() and use cmpxchg() instead.

Signed-off-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/unisys/include/uisqueue.h
Simple merge

diff --cc drivers/staging/unisys/include/uisutils.h
Simple merge

diff --cc drivers/staging/unisys/uislib/uisqueue.c
Simple merge