descriptors change image to cirros034 for coherency with wiki

Change-Id: I7f13d09e23a8dffb1c51e6760047650c183f0935
Signed-off-by: tierno <alfonso.tiernosepulveda@telefonica.com>

descriptor-packages/vnfd/cirros_noportsecurity_vnf/src/cirros_noportsecurity_vnfd.yaml

@@ -29,7 +29,7 @@ vnfd:vnfd-catalog:
                 storage-gb: 2
 
             # Image/checksum or image including the full path
-            image: 'CirrOS 0.3.4 64-bit'
+            image:     cirros034
             #checksum: 
 
             interface:

descriptor-packages/vnfd/cirros_vnf/src/cirros_vnfd.yaml

@@ -29,7 +29,7 @@ vnfd:vnfd-catalog:
                 storage-gb: 2
 
             # Image/checksum or image including the full path
-            image: 'cirros-0.3.5-x86_64-disk.img'
+            image:     cirros034
             #checksum: 
 
             interface: