sgsn: update configs for running without docker

Base on docker-playground.git's ttcn3-sgsn-test/*.cfg files, change IPs
to 127.0.0.* (keep last octet), log to stderr. The reasoning behind the
IP change is, that using almost the same IP as in the docker configs
makes it easier to compare the configs.

Change-Id: I15b5a943e9c665dfd4eb6b30bff84afc8adeb4a2
diff --git a/sgsn/osmo-stp.cfg b/sgsn/osmo-stp.cfg
new file mode 100644
index 0000000..b42f967
--- /dev/null
+++ b/sgsn/osmo-stp.cfg
@@ -0,0 +1,36 @@
+!
+! OsmoSTP (0.8.1) configuration saved from vty
+!!
+!
+log gsmtap 127.0.0.1
+ logging level set-all debug
+!
+log stderr
+ logging color 1
+ logging filter all 1
+ logging print level 1
+ logging print category 1
+ logging print category-hex 0
+ logging print file basename last
+ logging print extended-timestamp 1
+ logging level set-all debug
+!
+line vty
+ no login
+!
+cs7 instance 0
+ xua rkm routing-key-allocation dynamic-permitted
+ asp virt-rnc0-0 23908 2905 m3ua
+  local-ip 127.0.0.200
+  remote-ip 127.0.0.103
+ as virt-rnc0 m3ua
+  asp virt-rnc0-0
+  routing-key 2 0.24.3
+ route-table system
+  update route 0.24.3 7.255.7 linkset virt-rnc0
+ listen m3ua 2905
+  local-ip 127.0.0.200
+  accept-asp-connections dynamic-permitted
+ listen ipa 5000
+  local-ip 127.0.0.200
+  accept-asp-connections dynamic-permitted