Add HA tests

If no OC vars are found, set onosdriver.maxNodes to None

Change-Id: I74ff5762a8399a93084e0d8a2acd11acb8a5f4e5
diff --git a/TestON/tests/HAsingleInstanceRestart/HAsingleInstanceRestart.params b/TestON/tests/HAsingleInstanceRestart/HAsingleInstanceRestart.params
index 52bded5..c43bea1 100644
--- a/TestON/tests/HAsingleInstanceRestart/HAsingleInstanceRestart.params
+++ b/TestON/tests/HAsingleInstanceRestart/HAsingleInstanceRestart.params
@@ -17,8 +17,9 @@
     <testcases>1,2,8,3,4,5,14,15,16,17,[6],8,3,7,4,15,17,9,8,4,10,8,4,11,8,4,12,8,4,13</testcases>
     <ENV>
         <cellName>HA</cellName>
+        <appString>drivers,openflow,proxyarp,mobility</appString>
     </ENV>
-    <Git>False</Git>
+    <Git> False </Git>
     <branch> master </branch>
     <num_controllers> 1 </num_controllers>
     <tcpdump> False </tcpdump>