Explicitly configure ASPs asp-clnt-* as role=asp & sctp-role=client

Until recently, the asp-clnt-* ASPs, which have specific handling in osmo_sccp_simple_client_on_ss7_id(),
were being always forcedly set to sctp-role CLIENT by code in that
function.
This prevented user of that API from explicitly configuring the ASP as
"sctp-role server" through the VTY as the option would be overwritten silently.

Now, the sctp-role from config is followed if the ASP is
defined/configured through the VTY (not dynamically created at the time
osmo_sccp_simple_client_on_ss7_id() is called).

Since the default for a VTY-specified ASP is to be in "sctp-role
server", the config files need to be updated to properly configure the
ASP to be in "sctp-role client", which is the desired mode here.

Same applies for "role", where the default is SG but it is actually used
as "ASP" here.

Change-Id: I4eb5b5f6b4b24df079b4c74e2a2e2ebb8769b0bd
diff --git a/sgsn/osmo-sgsn.cfg b/sgsn/osmo-sgsn.cfg
index 7941007..b446f87 100644
--- a/sgsn/osmo-sgsn.cfg
+++ b/sgsn/osmo-sgsn.cfg
@@ -58,6 +58,8 @@
  point-code 0.23.4
  asp asp-clnt-OsmoSGSN-A 2905 0 m3ua
   remote-ip 127.0.0.200
+  role asp
+  sctp-role client
  as as-clnt-OsmoSGSN-A m3ua
   asp asp-clnt-OsmoSGSN-A
   routing-key 3 0.23.4