fix IUT for SOL005 NSLCM-API APIVersion

SOL005/NSLifecycleManagement-API/ApiVersion.robot

@@ -2,7 +2,7 @@
 
 Resource    environment/variables.txt
 
-Library    REST    ${VNFM_SCHEMA}://${VNFM_HOST}:${VNFM_PORT}     ssl_verify=false
+Library    REST    ${NFVO_SCHEMA}://${NFVO_HOST}:${NFVO_PORT}     ssl_verify=false
 Library    DependencyLibrary
 Library    JSONLibrary
 Library    JSONSchemaLibrary    schemas/
@@ -210,4 +210,4 @@ Check HTTP Response Body Json Schema Is
     [Arguments]    ${input}
     ${schema} =    Catenate    ${input}    .schema.json
     Validate Json    ${schema}    ${response['body']}
-    Log    Json Schema Validation OK
\ No newline at end of file
+    Log    Json Schema Validation OK