Disable swap for contrail-control/config/db

According to Juniper recommendation we need to disable swap.

Change-Id: I02a3b616de56abed21d4bed26580a49dfa3651ea

volumes.yaml

@@ -1,4 +1,16 @@
 volumes:
+  - id: "os-no-swap"
+    type: "vg"
+    min_size: {generator: "calc_min_os_size"}
+    label: "Base System"
+    volumes:
+      - mount: "/"
+        type: "lv"
+        name: "root"
+        size:
+          generator: "calc_total_vg"
+          generator_args: ["os-no-swap"]
+        file_system: "ext4"
   - id: "contrail-db"
     type: "vg"
     min_size:
@@ -31,7 +43,7 @@ volumes:
 
 volumes_roles_mapping:
   contrail-db:
-    - {allocate_size: "min", id: "os"}
+    - {allocate_size: "min", id: "os-no-swap"}
     - {allocate_size: "min", id: "crashes"}
     - {allocate_size: "min", id: "contrail-db"}
   contrail-analytics:
@@ -48,10 +60,10 @@ volumes_roles_mapping:
 # Furthermore, there is a lot of unallocated space left over.
 
   contrail-config:
-    - {allocate_size: "min", id: "os"}
+    - {allocate_size: "min", id: "os-no-swap"}
     - {allocate_size: "min", id: "crashes"}
     - {allocate_size: "all", id: "logs"}
   contrail-control:
-    - {allocate_size: "min", id: "os"}
+    - {allocate_size: "min", id: "os-no-swap"}
     - {allocate_size: "min", id: "crashes"}
     - {allocate_size: "all", id: "logs"}