kokr/memory-barriers.txt: Fix typo in paring example

This commit applies an upstream change, commit d92f842b
("memory-barriers.txt: Fix typo in pairing example") to the Korean
translation.
Signed-off-by: NSeongJae Park <sj38.park@gmail.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>

Documentation/translations/ko_KR/memory-barriers.txt

@@ -953,7 +953,7 @@ ACQUIRE 배리어, RELEASE 배리어, 또는 범용 배리어와 짝을 맞추
 	===============	      ===============================
 	r1 = READ_ONCE(y);
 	<범용 배리어>
-	WRITE_ONCE(y, 1);     if (r2 = READ_ONCE(x)) {
+	WRITE_ONCE(x, 1);     if (r2 = READ_ONCE(x)) {
 			         <묵시적 컨트롤 의존성>
 			         WRITE_ONCE(y, 1);
 			      }