Update onu_reason field to include tech-profile-config-downloaded-success state for Validate Device keyword

Change-Id: Ie894921633b49bbce2577b960a226d1cd53d8212
diff --git a/tests/dt-workflow/Voltha_DT_PODTests.robot b/tests/dt-workflow/Voltha_DT_PODTests.robot
index fcbba0a..bdb8f38 100644
--- a/tests/dt-workflow/Voltha_DT_PODTests.robot
+++ b/tests/dt-workflow/Voltha_DT_PODTests.robot
@@ -350,13 +350,14 @@
     [Setup]    Start Logging    DisableDeleteONUOLTDt
     [Teardown]    Run Keywords    Collect Logs
     ...           AND             Stop Logging    DisableDeleteONUOLTDt
+    @{onu_reason}=    Create List    initial-mib-downloaded    omci-flows-pushed
     FOR    ${I}    IN RANGE    0    ${num_all_onus}
         ${src}=    Set Variable    ${hosts.src[${I}]}
         ${dst}=    Set Variable    ${hosts.dst[${I}]}
         ${onu_device_id}=    Get Device ID From SN    ${src['onu']}
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
         ...    Validate Device    ENABLED    ACTIVE
-        ...    REACHABLE    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
+        ...    REACHABLE    ${src['onu']}    onu=True    onu_reason=${onu_reason}
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
         ...    Validate OLT Device    ENABLED    ACTIVE
         ...    REACHABLE    ${src['olt']}