fix wim persistence issue

Change-Id: I2dc89c740445e2a487b068949369670f19a4122b
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>
diff --git a/RO/osm_ro/vim_thread.py b/RO/osm_ro/vim_thread.py
index 622cccb..380bd6a 100644
--- a/RO/osm_ro/vim_thread.py
+++ b/RO/osm_ro/vim_thread.py
@@ -126,7 +126,7 @@
         self.error_status = None
         self.wim_account_id = wim_account_id
         self.datacenter_tenant_id = datacenter_tenant_id
-        self.port_mapping = None
+        self.port_mappings = None
         if self.wim_account_id:
             self.target_k = "wim_account_id"
             self.target_v = self.wim_account_id
diff --git a/RO/osm_ro/wim/persistence.py b/RO/osm_ro/wim/persistence.py
index f4945bb..27a87c4 100644
--- a/RO/osm_ro/wim/persistence.py
+++ b/RO/osm_ro/wim/persistence.py
@@ -870,10 +870,7 @@
     """
     wim_account = preprocess_record(wim_account)
 
-    created = wim_account.get('created')
-    wim_account['created'] = (
-        'true' if created is True or created == 'true' else 'false')
-
+    wim_account['sdn'] = False
     return wim_account