staging: s-Par driver documentation

Documentation for the set of s-Par drivers

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

diff --cc drivers/staging/unisys/Documentation/overview.txt
Simple merge

diff --cc drivers/staging/unisys/Documentation/proc-entries.txt
Simple merge

diff --cc drivers/staging/unisys/MAINTAINERS
Simple merge

diff --cc drivers/staging/unisys/TODO
Simple merge