kokr/memory-barriers/txt: Replace uses of "transitive"

This commit applies two upstream change, commit f1ab25a3
("memory-barriers: Replace uses of "transitive"") and commit 0902b1f4
("memory-barriers: Rework multicopy-atomicity section") to the Korean
translation.  Those two changes are applied with this signle commit
because the second change is improvement of the first one.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>