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/bsc/osmo-bsc.cfg b/bsc/osmo-bsc.cfg
index bb62f52..43f7833 100644
--- a/bsc/osmo-bsc.cfg
+++ b/bsc/osmo-bsc.cfg
@@ -49,6 +49,8 @@
 cs7 instance 0
  asp asp-clnt-msc-0 2905 1905 m3ua
   remote-ip 127.0.0.1
+  role asp
+  sctp-role client
  sccp-address msc2
   point-code 0.0.2
  sccp-address msc3