Increasing tolerance of onos-check-apps.

Change-Id: I5c5c33b7727dff889775535af6bde2e8702b873f
diff --git a/tools/test/bin/onos-check-apps b/tools/test/bin/onos-check-apps
index 479d1f1..55e94f0 100755
--- a/tools/test/bin/onos-check-apps
+++ b/tools/test/bin/onos-check-apps
@@ -9,7 +9,7 @@
 aux=/tmp/stc-$$.log
 trap "rm -f $aux $aux.1 $aux.2 2>/dev/null" EXIT
 
-for attempt in {1..20}; do
+for attempt in {1..30}; do
     onos ${1:-$OCI} "onos:apps -s -a" | grep -v /bin/client > $aux
     cat $aux