docs/memory-barriers.txt/kokr: Fix confusing name of 'data dependency barrier'

Translate this commit to Korean:

    203185f6 ("Fix confusing name of 'data dependency barrier'")

Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Yunjae Lee <lyj7694@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>