Fix installation to use 9 tag as default for docker images

Change-Id: Ia0bed5627301fa7bbcaa5a5229ea9138f70d2d92
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/docker/osm_pods/keystone.yaml b/installers/docker/osm_pods/keystone.yaml
index 051d902..dfb242a 100644
--- a/installers/docker/osm_pods/keystone.yaml
+++ b/installers/docker/osm_pods/keystone.yaml
@@ -46,7 +46,7 @@
     spec:
       containers:
       - name: keystone
-        image: opensourcemano/keystone:8
+        image: opensourcemano/keystone:9
         ports:
         - containerPort: 5000
           protocol: TCP