bsc: Add access lists to the MSC and the BSC

It is a bit arbitary to decide which one is the global
and which one is the local one. We might change it around.
I don't think we want to introduce it based on BTS.
diff --git a/openbsc/doc/examples/osmo-bsc/osmo-bsc.cfg b/openbsc/doc/examples/osmo-bsc/osmo-bsc.cfg
index d746196..fd4c3d7 100644
--- a/openbsc/doc/examples/osmo-bsc/osmo-bsc.cfg
+++ b/openbsc/doc/examples/osmo-bsc/osmo-bsc.cfg
@@ -98,3 +98,8 @@
  timeout-ping 20
  timeout-pong 5
  dest 192.168.100.11 6666 0
+ access-list-name msc-list
+ no access-list-name
+bsc
+ no access-list-name
+ access-list-name bsc-list