STC scenario for device removal

Change-Id: I75500d12406b4c23d58d3e02222443cc93bc377d
diff --git a/tools/test/topos/default.recipe b/tools/test/topos/default.recipe
index c6b4e55..5f0a436 100644
--- a/tools/test/topos/default.recipe
+++ b/tools/test/topos/default.recipe
@@ -23,4 +23,8 @@
 export OPDS2="of:0000000000000004"
 export OPDP2="2"
 
+# Variables for device removal scenario
+export OPSD1="s4"
+export OPSD2="s7"
+