[VOL-3258] fix variable values

Change-Id: Ie29d86b68fa8faf7950fc643ecf7c722f6c7b084
diff --git a/tests/functional/Voltha_ErrorScenarios.robot b/tests/functional/Voltha_ErrorScenarios.robot
index b191171..5d94432 100644
--- a/tests/functional/Voltha_ErrorScenarios.robot
+++ b/tests/functional/Voltha_ErrorScenarios.robot
@@ -50,6 +50,7 @@
 ${has_dataplane}    True
 ${teardown_device}    False
 ${scripts}        ../../scripts
+${workflow}    ATT
 
 # Per-test logging on failure is turned off by default; set this variable to enable
 ${container_log_dir}    ${None}
@@ -70,7 +71,7 @@
     Run Keyword and Ignore Error   Collect Logs
     ${olt_device_id}=    Create Device    ${olt_ip}    ${OLT_PORT}
     Set Suite Variable    ${olt_device_id}
-    ${timeout}    Set Variable    180s
+    ${timeout}    Set Variable    250s
     Wait Until Keyword Succeeds    ${timeout}    5s    Validate OLT Device    PREPROVISIONED    UNKNOWN    UNKNOWN
     ...    ${olt_device_id}
     ${rc}    ${output}=    Run and Return Rc and Output