Fix incorrectly spelled DEFAULT_OPERTATION_TIMEOUT_MILLIS constant... Driving me crazy!

Change-Id: I9e46454f5298f8e7603438129d17f9d305da6210
diff --git a/core/api/src/main/java/org/onosproject/store/service/AsyncLeaderElector.java b/core/api/src/main/java/org/onosproject/store/service/AsyncLeaderElector.java
index 9b8c967..0ed4470 100644
--- a/core/api/src/main/java/org/onosproject/store/service/AsyncLeaderElector.java
+++ b/core/api/src/main/java/org/onosproject/store/service/AsyncLeaderElector.java
@@ -142,6 +142,6 @@
      * @return new {@code LeaderElector} instance
      */
     default LeaderElector asLeaderElector() {
-        return asLeaderElector(DistributedPrimitive.DEFAULT_OPERTATION_TIMEOUT_MILLIS);
+        return asLeaderElector(DistributedPrimitive.DEFAULT_OPERATION_TIMEOUT_MILLIS);
     }
 }