Trust router: print default realm

diff --git a/trust_router b/trust_router
index 18a7cb6..77bad15 160000 (submodule)
--- a/trust_router
+++ b/trust_router
@@ -1 +1 @@
-Subproject commit 18a7cb6e262bc1d3fd651ea3a75c24e17c79fc56
+Subproject commit 77bad153938f12be6ea80a0e57463ff22624ea96