Increasing tolerance of onos-check-apps to allow for running on slower cells.

Change-Id: Ib5e61a03e49f9347c9c1fb475c304c13b36e499c

@@ -9,7 +9,7 @@
 aux=/tmp/stc-$$.log
 aux=/tmp/stc-$$.log
 trap "rm -f $aux $aux.1 $aux.2 2>/dev/null" EXIT
 trap "rm -f $aux $aux.1 $aux.2 2>/dev/null" EXIT
 
 
-for attempt in {1..10}; do
+for attempt in {1..20}; do
     onos ${1:-$OCI} "onos:apps -s -a" | grep -v /bin/client > $aux
     onos ${1:-$OCI} "onos:apps -s -a" | grep -v /bin/client > $aux
     cat $aux
     cat $aux