Add t1-isolated-d32 to tor_default_route (sonic-net#18969)

What is the motivation for this PR?
Configure t1-isolated-d32 default routes through it's TORs

Signed-off-by: Guy Shemesh <[email protected]>

Author: dayouliu1

ansible/library/announce_routes.py

@@ -1589,7 +1589,7 @@ def main():
                 topo['configuration'].pop(vm_name)
 
     is_storage_backend = "backend" in topo_name
-    tor_default_route = "t1-isolated-d128" in topo_name
+    tor_default_route = topo_name in ["t1-isolated-d128", "t1-isolated-d32"]
 
     topo_type = get_topo_type(topo_name)