ubuntu_4ifaces VNF and NS: updated product-name, id and vnfd-id

Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

ubuntu_4ifaces_ns/ubuntu_4ifaces_nsd.yaml

 nsd:
   nsd:
-  - description: NS with 2 VNFs ubuntu_4ifaces_vnf connected by mgmtnet and 3 datanet VLs
+  - description: NS with 2 VNFs ubuntu_4ifaces-vnf connected by mgmtnet and 3 datanet VLs
     df:
     - id: default-df
       vnf-profile:
       - id: vnf1
-        vnfd-id: ubuntu_4ifaces_vnf
+        vnfd-id: ubuntu_4ifaces-vnf
         virtual-link-connectivity:
         - constituent-cpd-id:
           - constituent-base-element-id: vnf1
@@ -24,7 +24,7 @@ nsd:
             constituent-cpd-id: vnf-data3-ext
           virtual-link-profile-id: datanet3
       - id: vnf2
-        vnfd-id: ubuntu_4ifaces_vnf
+        vnfd-id: ubuntu_4ifaces-vnf
         virtual-link-connectivity:
         - constituent-cpd-id:
           - constituent-base-element-id: vnf2
@@ -42,8 +42,8 @@ nsd:
           - constituent-base-element-id: vnf2
             constituent-cpd-id: vnf-data3-ext
           virtual-link-profile-id: datanet3
-    id: ubuntu_4ifaces_ns
-    name: ubuntu_4ifaces_ns
+    id: ubuntu_4ifaces-ns
+    name: ubuntu_4ifaces-ns
     version: '1.0'
     virtual-link-desc:
     - id: mgmtnet
@@ -52,4 +52,4 @@ nsd:
     - id: datanet2
     - id: datanet3
     vnfd-id:
-    - ubuntu_4ifaces_vnf
+    - ubuntu_4ifaces-vnf

ubuntu_4ifaces_vnf/ubuntu_4ifaces_vnfd.yaml

@@ -27,9 +27,9 @@ vnfd:
     int-cpd:
       cpd: eth3-int
       vdu-id: dataVM
-  id: ubuntu_4ifaces_vnf
+  id: ubuntu_4ifaces-vnf
   mgmt-cp: vnf-mgmt-ext
-  product-name: ubuntu_4ifaces_vnf
+  product-name: ubuntu_4ifaces-vnf
   sw-image-desc:
   - id: ubuntu20.04
     image: ubuntu20.04