Fix colliding namespaces and unused imports

Change-Id: I6298f8992a4bba6040a24662e69631b7127d1040
Signed-off-by: Tomás Villaseca <tvillaseca@whitestack.com>
diff --git a/augments/vnfd/cloud-init.yang b/augments/vnfd/cloud-init.yang
index 73bc723..160c5c8 100644
--- a/augments/vnfd/cloud-init.yang
+++ b/augments/vnfd/cloud-init.yang
@@ -17,7 +17,7 @@
 
 module cloud-init {
     yang-version 1.1;
-    namespace "urn:etsi:osm:yang:augments";
+    namespace "urn:etsi:osm:yang:augments:cloud-init";
     prefix "cloud-init";
 
     import etsi-nfv-vnfd {