osmo-bsc: Parametrize codec-list VTY cfg

Change-Id: I1678aba43e8d399ecad192cbc416698373e3c0a0
diff --git a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
index edcf33f..95bf5e3 100644
--- a/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
+++ b/src/osmo_gsm_tester/templates/osmo-bsc.cfg.tmpl
@@ -110,7 +110,7 @@
  mgw remote-port 2427
  mgw local-ip ${bsc.ip_address.addr}
  mgw endpoint-range 1 31
- codec-list hr3
+ codec-list ${' '.join(bsc.net.codec_list)}
  amr-config 12_2k forbidden
  amr-config 10_2k forbidden
  amr-config 7_95k forbidden