[VOL-3580] Fix issue with re-install of OLT in master builds

Change-Id: Iec4e4a14850269f92b57d17c61cb08723a572f2e
diff --git a/tests/functional/Voltha_FailureScenarios.robot b/tests/functional/Voltha_FailureScenarios.robot
index 767fede..5da7c2b 100644
--- a/tests/functional/Voltha_FailureScenarios.robot
+++ b/tests/functional/Voltha_FailureScenarios.robot
@@ -651,7 +651,7 @@
 
 Verify ONU Soft Reboot
     [Documentation]    Test soft reboot of the ONU using voltctl command
-    [Tags]    VOL-1957    ONUSoftReboot   functional   notready
+    [Tags]    VOL-1957    ONUSoftReboot   functional
     [Setup]    Start Logging    ONUSoftReboot
     #...        AND             Setup
     [Teardown]    Run Keywords    Collect Logs
@@ -716,6 +716,8 @@
         Run Keyword and Ignore Error    Get Device Output from Voltha    ${onu_device_id}
         Run Keyword And Ignore Error    Collect Logs
     END
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
+    Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
 
 *** Keywords ***
 Setup Suite