move to libcommon-cs: net init 1: rename to bsc_network_init

The gsm_network_init() function initializes a whole lot of BSC specific stuff.
Aiming to move some of it to libcommon-cs, first rename it to bsc_network_init().
This will retain the BSC specific stuff when the move is done.

Adjust all callers.

Future: osmo-cscn will call the more generic part and not the BSC specific
part.

Change-Id: I4816ae19374390fc5c64972f7cad2e9ec3d8bcc3
diff --git a/openbsc/src/utils/bs11_config.c b/openbsc/src/utils/bs11_config.c
index 20b9ed3..ee43a40 100644
--- a/openbsc/src/utils/bs11_config.c
+++ b/openbsc/src/utils/bs11_config.c
@@ -897,7 +897,7 @@
 	handle_options(argc, argv);
 	bts_model_bs11_init();
 
-	gsmnet = gsm_network_init(tall_bs11cfg_ctx, 1, 1, NULL);
+	gsmnet = bsc_network_init(tall_bs11cfg_ctx, 1, 1, NULL);
 	if (!gsmnet) {
 		fprintf(stderr, "Unable to allocate gsm network\n");
 		exit(1);