modify storage class name

Change-Id: I1727937514933e8ccf663897dca6725e3a162e9a
diff --git a/fill_database_for_test.py b/fill_database_for_test.py
index 6ffc096..9a021a3 100644
--- a/fill_database_for_test.py
+++ b/fill_database_for_test.py
@@ -20,7 +20,7 @@
 
 import os.path
 from pyndn import Name
-from device_user_access_storage import DeviceUserAccessStorage
+from device_storage import DeviceStorage
 from device_profile import DeviceProfile
 from hmac_key import HMACKey
 
@@ -42,7 +42,7 @@
         if os.path.isfile(self.databaseFilePath):
             os.remove(self.databaseFilePath)
 
-        self.storage = DeviceUserAccessStorage()
+        self.storage = DeviceStorage()
 
     def fillDatabase(self):
         count = self.count