Augment Korean Localization

Change-Id: I296e0cf24d23846db6140df3499119509e7058a2
diff --git a/web/gui/src/main/resources/org/onosproject/ui/lion/core/common/Ui_ko.properties b/web/gui/src/main/resources/org/onosproject/ui/lion/core/common/Ui_ko.properties
index a04753d..90fcb83 100644
--- a/web/gui/src/main/resources/org/onosproject/ui/lion/core/common/Ui_ko.properties
+++ b/web/gui/src/main/resources/org/onosproject/ui/lion/core/common/Ui_ko.properties
@@ -24,4 +24,4 @@
 scroll_down=아래로 스크롤
 
 # Common control button tooltips
-#tt_ctl_auto_refresh=
+tt_ctl_auto_refresh=자동 새로고침 토글