Enhancing cell-stc to utilize the local value of ONOS_APPS variable.

Change-Id: Ida396c96d2fc0359c60d7a3c187b087459949602
diff --git a/tools/dev/bin/cell-stc b/tools/dev/bin/cell-stc
index 2c80bd2..64d234c 100755
--- a/tools/dev/bin/cell-stc
+++ b/tools/dev/bin/cell-stc
@@ -9,5 +9,6 @@
 ssh -t -t $ONOS_USER@$OCN "
     source ~/.bash_aliases
     cd \$ONOS_ROOT
+    export ONOS_APPS=$ONOS_APPS
     stc $@
 "