[VOL-3827] Update framework to use user defined olt ports

Change-Id: Id4434d15d7a4f2fbc5b2971888fd7c9e4814321f
diff --git a/tests/functional/Voltha_PODTests.robot b/tests/functional/Voltha_PODTests.robot
index 36ad29d..e1f0c5e 100644
--- a/tests/functional/Voltha_PODTests.robot
+++ b/tests/functional/Voltha_PODTests.robot
@@ -386,8 +386,8 @@
     Run Keyword If    ${has_dataplane}    Sleep    180s
     # This dneeds to be done in for loop, test is not ready
     ${olt_device_id}=    Run Keyword If    "${list_olts}[${I}][type]" == "${None}"
-    ...    Create Device    ${list_olts}[${I}][ip]    ${OLT_PORT}
-    ...    ELSE    Create Device    ${list_olts}[${I}][ip]    ${OLT_PORT}    ${list_olts}[${I}][type]
+    ...    Create Device    ${list_olts}[${I}][ip]    ${list_olts}[${I}][oltport]
+    ...    ELSE    Create Device    ${list_olts}[${I}][ip]    ${list_olts}[${I}][oltport]    ${list_olts}[${I}][type]
     Set Suite Variable    ${olt_device_id}
     Wait Until Keyword Succeeds    ${timeout}    5s    Validate OLT Device    PREPROVISIONED
     ...    UNKNOWN    UNKNOWN    ${olt_device_id}