Add support for -c (cleanup) option

Change-Id: I3a18bc07fab13d7248dab79fe51618a6257bc62f
(cherry picked from commit 6494da9b2ef46fd6bd09f602d9c9864f4f77b937)
diff --git a/scripts/single-node-pod.sh b/scripts/single-node-pod.sh
index 023d0a8..47fb531 100755
--- a/scripts/single-node-pod.sh
+++ b/scripts/single-node-pod.sh
@@ -83,7 +83,7 @@
 DIAGNOSTICS=1
 CLEANUP=0
 
-while getopts "b:dehi:p:r:ts:" opt; do
+while getopts "b:cdehi:p:r:ts:" opt; do
   case ${opt} in
     b ) XOS_BRANCH=$OPTARG
       ;;