Fix idmap leak in zygote process

am: 0244ca8d10

Change-Id: Ia35ded23161ad5c5c6fe4dea388e74b8d8af2955

libs/androidfw/AssetManager.cpp

@@ -798,6 +798,7 @@ void AssetManager::addSystemOverlays(const char* pathOverlaysList,
             sharedRes->add(oass, oidmap, offset + 1, false);
             const_cast<AssetManager*>(this)->mAssetPaths.add(oap);
             const_cast<AssetManager*>(this)->mZipSet.addOverlay(targetPackagePath, oap);
+            delete oidmap;
         }
     }
     fclose(fin);