Fix build because of 946456c6d88780abe0251b098dd771e9e1e93ab3.

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/QuotaByStorageTypeEntry.java

@@ -18,9 +18,9 @@
 package org.apache.hadoop.hdfs.server.namenode;
 
 import com.google.common.base.Objects;
-import org.apache.hadoop.hdfs.StorageType;
+import org.apache.hadoop.fs.StorageType;
 
- public class QuotaByStorageTypeEntry {
+public class QuotaByStorageTypeEntry {
    private StorageType type;
    private long quota;