HDFS-4817. Moving changelog to Release 2.2.0 section to reflect the backport.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1529751 13f79535-47bb-0310-9956-ffa450edef68

hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

@@ -262,9 +262,6 @@ Release 2.3.0 - UNRELEASED
     HDFS-4278. Log an ERROR when DFS_BLOCK_ACCESS_TOKEN_ENABLE config is
     disabled but security is turned on. (Kousuke Saruta via harsh)
 
-    HDFS-4817.  Make HDFS advisory caching configurable on a per-file basis.
-    (Colin Patrick McCabe)
-
     HDFS-5004. Add additional JMX bean for NameNode status data
     (Trevor Lorimer via cos)
 
@@ -339,6 +336,9 @@ Release 2.2.0 - 2013-10-13
 
   NEW FEATURES
 
+    HDFS-4817.  Make HDFS advisory caching configurable on a per-file basis.
+    (Colin Patrick McCabe)
+
     HDFS-5230. Introduce RpcInfo to decouple XDR classes from the RPC API.
     (Haohui Mai via brandonli)