default suites: enable osmo-bts-trx (Ettus B210)

Change-Id: I5dce732ed21f34988aa014add4d2d611dd0c44fc
diff --git a/example/default-suites.conf b/example/default-suites.conf
index e6ebcc1..50cbec2 100644
--- a/example/default-suites.conf
+++ b/example/default-suites.conf
@@ -1,2 +1,4 @@
 - sms:sysmo
 - aoip_sms:sysmo
+- sms:trx
+- aoip_sms:trx