Removed VPORT in all VNFDs and generate_descriptor_pkg.sh

Change-Id: I8c8102d6b16b8001762fcd3650db8cc688006ece
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

descriptor-packages/vnfd/ubuntu_cirros_multidisk_vnf/src/ubuntu_cirros_multidisk_vnfd.yaml

@@ -51,4 +51,4 @@ vnfd-catalog:
 
         connection-point:
             -   name: eth0
-                type: VPORT
+

descriptor-packages/vnfd/ubuntu_epa_virtio_vnf/src/ubuntu_epa_virtio_vnfd.yaml

@@ -66,4 +66,4 @@ vnfd-catalog:
 
         connection-point:
             -   name: eth0
-                type: VPORT
+

descriptor-packages/vnfd/ubuntu_xenial_vnf/src/ubuntu_xenial_vnfd.yaml

@@ -46,4 +46,4 @@ vnfd-catalog:
 
         connection-point:
             -   name: eth0
-                type: VPORT
+