documentation: Add Korean translation

This commit adds Korean version of memory-barriers.txt document.  The
header is refered to HOWTO Korean version.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Minchan Kim <minchan@kernel.org>
1 file changed