templates: also fix asp config in osmo-{bsc,sgsn}.cfg.tmpl

In change [1] I attempted to fix osmo-gsm-tester_virtual, but I did
not notice that the same problem also was in osmo-bsc.cfg.tmpl.

Also add the missing params to osmo-sgsn.cfg.tmpl.

Change-Id: I7b3adfa131a9dbb867b9ae68615da27191b021e5
Related: [1] Ie29589b46c65707089ff2b22c3b139b7b435cc95

src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl

@@ -21,6 +21,8 @@ cs7 instance 0
  asp asp0 2905 0 m3ua
   local-ip ${bsc.ip_address.addr}
   remote-ip ${stp.ip_address.addr}
+  role asp
+  sctp-role client
  as as0 m3ua
   asp asp0
   routing-key 2 0.0.2

src/osmo_gsm_tester/templates/osmo-sgsn.cfg.tmpl

@@ -18,6 +18,8 @@ line vty
 ! asp asp-clnt-OsmoSGSN-A 2905 0 m3ua
 !  local-ip ${sgsn.ip_address.addr}
 !  remote-ip stp.ip_address.addr
+!  role asp
+!  sctp-role client
 ! as as-clnt-OsmoSGSN-A m3ua
 !  asp asp-clnt-OsmoSGSN-A
 !  routing-key 3 0.23.4