Make STC less sensitive to timing problems with node and app startup

Change-Id: Ia5d7d7e2301e3c94b7aa2c388831a51561bc95fa
diff --git a/tools/test/bin/onos-wait-for-start b/tools/test/bin/onos-wait-for-start
index 2cc5002..aad891c 100755
--- a/tools/test/bin/onos-wait-for-start
+++ b/tools/test/bin/onos-wait-for-start
@@ -19,7 +19,7 @@
 
 ssh -t -t $remote "
     # Wait until ApplicationManager is available
-    for i in {1..10}; do
+    for i in {1..30}; do
         grep -q \" ApplicationManager .* Started\" \
             $ONOS_INSTALL_DIR/log/karaf.log* && break || sleep 1
     done