templates: Improve cs7 config in osmo-{bsc,msc}

Change-Id: I0aa0057c85e606d45e67d01b818db7549033bdbd
diff --git a/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
index a59b7cd..7d12ab5 100644
--- a/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl
@@ -10,6 +10,15 @@
  logging level set-all debug
 line vty
  no login
+!cs7 instance 0
+! point-code 0.23.4
+! asp asp-clnt-OsmoSGSN-A 2905 0 m3ua
+!  local-ip ${sgsn.ip_address.addr}
+!  remote-ip stp.ip_address.addr
+! as as-clnt-OsmoSGSN-A m3ua
+!  asp asp-clnt-OsmoSGSN-A
+!  routing-key 3 0.23.4
+
 sgsn
  gtp local-ip ${sgsn.ip_address.addr}
  ggsn 0 remote-ip ${ggsn.ip_address.addr}