Increase timeout value to accommodate in-band OLT activation

Change-Id: Ic473dd8124a3f06865028527209157938e9ca6a2
diff --git a/tests/functional/Voltha_ErrorScenarios.robot b/tests/functional/Voltha_ErrorScenarios.robot
index dafbf2c..8637d2d 100644
--- a/tests/functional/Voltha_ErrorScenarios.robot
+++ b/tests/functional/Voltha_ErrorScenarios.robot
@@ -44,7 +44,7 @@
 # For below variable value, using deployment name as using grep for
 # parsing radius pod name, we can also use full radius pod name
 ${RESTART_POD_NAME}    radius
-${timeout}        360s
+${timeout}        540s
 ${of_id}          0
 ${logical_id}     0
 ${has_dataplane}    True