SOL003_99: InstantiateVnfRequest datatype updated

src/definitions/SOL002SOL003VNFLifecycleManagement_def.yaml

@@ -40,6 +40,12 @@ definitions:
           to the VNF being instantiated, as declared in the VNFD as part of
           "InstantiateVnfOpConfig".
         $ref: "SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
+      extensions:
+        description: >
+          If present, this attribute provides values for the "extensions" attribute in "VnfInstance",
+          as defined in clause 5.5.2.2. If an entry with the same key exists in the VnfInstance data structure,
+          the VNFM shall replace its value with the value passed in the InstantiateVnfRequest data structure.
+        $ref: "SOL002SOL003_def.yaml#/definitions/KeyValuePairs"
 
   VnfLcmOpOcc:
     description: >