Prepare installer and pods for Rel TWELVE

Change-Id: I9fa2bfe6322748b9fbd22d2348b88f8f63df0329
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/docker/osm_pods/pol.yaml b/installers/docker/osm_pods/pol.yaml
index 5f562c2..9c852c5 100644
--- a/installers/docker/osm_pods/pol.yaml
+++ b/installers/docker/osm_pods/pol.yaml
@@ -40,7 +40,7 @@
         command: ["sh", "-c", "until (nc -zvw1 kafka 9092 && nc -zvw1 mongodb-k8s 27017); do sleep 3; done; exit 0"]
       containers:
       - name: pol
-        image: opensourcemano/pol:11
+        image: opensourcemano/pol:12
         env:
          - name: OSMPOL_MESSAGE_HOST
            value: kafka