Fix TP pbit verification test.
The s-tag from the BNG also should carry the same pbit as the c-tag.
Otherwise the RG could receive pbit 0 instead of any other intended pbit
because the pbit from the s-tag is copied (possibly) by BAL to c-tag and
since the pbit on the s-tag default to 0 if not filled at BNG, it could
corrupt RGs pbit on the c-tag.

Change-Id: Icf4ee4d438d35bee4dc133b8a6503cd21222c1c7
diff --git a/tests/dt-workflow/Voltha_DT_PODTests.robot b/tests/dt-workflow/Voltha_DT_PODTests.robot
index 5aa46e6..c44116e 100755
--- a/tests/dt-workflow/Voltha_DT_PODTests.robot
+++ b/tests/dt-workflow/Voltha_DT_PODTests.robot
@@ -608,7 +608,7 @@
         Log    Upstream test
         Run Keyword If    ${has_dataplane}    Create traffic with each pbit and capture at other end
         ...    ${dst['dp_iface_ip_qinq']}    ${dst['dp_iface_name']}    ${src_iface_name}
-        ...    0    tcp     ${src['c_tag']}    vlan
+        ...    0    tcp     ${src['c_tag']}    ${src['s_tag']}    upstream    vlan
         ...    ${bng_ip}    ${bng_user}    ${bng_pass}    ${dst['container_type']}    ${dst['container_name']}
         ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
         Log    Downstream test
@@ -617,8 +617,8 @@
         ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
         Should Be Equal As Integers    ${rc}    0    Could not get RG's IP address
         Run Keyword If    ${has_dataplane}    Create traffic with each pbit and capture at other end
-        ...    ${rg_ip}    ${src_iface_name}    ${dst['dp_iface_name']}.${src['s_tag']}
-        ...    0    tcp    ${src['c_tag']}    tcp
+        ...    ${rg_ip}    ${src_iface_name}    ${dst['dp_iface_name']}
+        ...    0    tcp    ${src['c_tag']}    ${src['s_tag']}    downstream    tcp
         ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
         ...    ${bng_ip}    ${bng_user}    ${bng_pass}    ${dst['container_type']}    ${dst['container_name']}
     END