fixing tests, added cleanup procedure

Change-Id: I713239b0ac9bb1c1ae4ffa4aef9b36a5e53f81fb
diff --git a/tests/functional/Voltha_PODTests.robot b/tests/functional/Voltha_PODTests.robot
index d733129..5c2f917 100644
--- a/tests/functional/Voltha_PODTests.robot
+++ b/tests/functional/Voltha_PODTests.robot
@@ -59,6 +59,7 @@
     ...    Validate successful authentication/DHCP/E2E ping for the tech profile that is used
     [Tags]    sanity    test1
     [Teardown]    NONE
+    Run Keyword If    ${has_dataplane}    Clean Up Linux
     Wait Until Keyword Succeeds    ${timeout}   2s    Perform Sanity Test
     Run Keyword and Ignore Error    Collect Logs