tests/gb: Add more complex osmo-ns-dummy.cfg

write config will not print out any configuration for bind/nse unless we
configure some. This way we can catch more issues with incompatible
configs such as https://gerrit.osmocom.org/c/libosmocore/+/22878

Change-Id: Iad422ee013c82a6cb96af8ce4eb3af8b0936a4c9
Related: OS#4887
diff --git a/tests/gb/osmo-ns-dummy.cfg b/tests/gb/osmo-ns-dummy.cfg
index e69de29..1e6dc76 100644
--- a/tests/gb/osmo-ns-dummy.cfg
+++ b/tests/gb/osmo-ns-dummy.cfg
@@ -0,0 +1,24 @@
+!
+! OsmoNSdummy (1.4.0.495-64db) configuration saved from vty
+!!
+ns
+ timer tns-block 3
+ timer tns-block-retries 3
+ timer tns-reset 3
+ timer tns-reset-retries 3
+ timer tns-test 30
+ timer tns-alive 3
+ timer tns-alive-retries 10
+ timer tsns-prov 3
+ timer tsns-size-retries 3
+ timer tsns-config-retries 3
+ bind udp local
+  listen 127.0.0.1 2158
+  accept-ipaccess
+  ip-sns signalling-weight 1 data-weight 1
+ nse 1236
+  nsvc ipa local 127.0.0.4 23000 nsvci 101
+ nse 1235
+  nsvc udp local 127.0.0.3 23000
+ nse 1234
+  ip-sns-remote 127.0.0.2 2158