Remove memory leak.

Call EndIteration in endIteration to free memory allocated for cookie in
StartIteration.

Change-Id: I3d58a461c2f3676565cfd7922dc6d8d5c35feae9
diff --git a/libs/androidfw/ZipFileRO.cpp b/libs/androidfw/ZipFileRO.cpp
index 1ab18ad..a485d2b 100644
--- a/libs/androidfw/ZipFileRO.cpp
+++ b/libs/androidfw/ZipFileRO.cpp
@@ -53,6 +53,10 @@
     _ZipEntryRO() : cookie(NULL) {
     }
 
+    ~_ZipEntryRO() {
+      EndIteration(cookie);
+    }
+
 private:
     _ZipEntryRO(const _ZipEntryRO& other);
     _ZipEntryRO& operator=(const _ZipEntryRO& other);