Added "spt" to the cleanup script mask to clean MOS-SPT resources

Change-Id: I752dea198e893faf3d2b274ccedacee5feb4dde2
diff --git a/scripts/cleanup_old.sh b/scripts/cleanup_old.sh
index 9792873..693c913 100644
--- a/scripts/cleanup_old.sh
+++ b/scripts/cleanup_old.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 export OS_INTERFACE='admin'
-mask='rally_\|tempest_\|tempest-'
+mask='rally_\|tempest_\|tempest-\|spt-'
 
 echo "Starting. Using mask '$mask'"