Fix bug #677 osm nsi-op-list name' and 'osm nsi-op-show id' returns null

Change-Id: Ie20b1c2b28195b8e4e309623cf5b2619dd8e2459
Signed-off-by: Felipe Vicens <felipe.vicens@atos.net>
diff --git a/osm_nbi/validation.py b/osm_nbi/validation.py
index acb53c0..a244ac1 100644
--- a/osm_nbi/validation.py
+++ b/osm_nbi/validation.py
@@ -712,7 +712,7 @@
     "type": "object",
     "properties": {
         "lcmOperationType": string_schema,
-        "nsiInstanceId": id_schema,
+        "netsliceInstanceId": id_schema,
         "nsiName": name_schema,
         "nsiDescription": {"oneOf": [description_schema, null_schema]},
         "nstId": string_schema,