Allowing cell-stc to inherit stcOpenJDK env. variable.

Change-Id: Iff82642eee04654487245926ba4f3329ed3498cb
diff --git a/tools/dev/bin/cell-stc b/tools/dev/bin/cell-stc
index 64d234c..e6199d8 100755
--- a/tools/dev/bin/cell-stc
+++ b/tools/dev/bin/cell-stc
@@ -10,5 +10,6 @@
     source ~/.bash_aliases
     cd \$ONOS_ROOT
     export ONOS_APPS=$ONOS_APPS
+    export stcOpenJDK=$stcOpenJDK
     stc $@
 "