cosmetic: rename struct osmo_msc_data to bsc_msc_data

With the OsmoMSC program coming up, the name osmo_msc_data becomes even
more confusing than it already is. Clearly indicate it as libbsc's data of
a remote MSC by prefixing with bsc_.

Also, the Osmocom community has in the meantime agreed to have the osmo_
prefix only in libosmocore, to avoid naming conflicts in case things are
moved there. So while renaming anyway, also drop the osmo_ prefix.

Change-Id: I0dfbcb7d1a579211180f71319982820d8700afab
diff --git a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c b/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
index 09efaf4..970d70e 100644
--- a/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
+++ b/openbsc/src/osmo-bsc/osmo_bsc_sccp.c
@@ -166,7 +166,7 @@
 
 static int msc_sccp_read(struct msgb *msgb, unsigned int length, void *data)
 {
-	struct osmo_msc_data *msc = (struct osmo_msc_data *) msgb->cb[0];
+	struct bsc_msc_data *msc = (struct bsc_msc_data *) msgb->cb[0];
 	return bsc_handle_udt(msc, msgb, length);
 }
 
@@ -194,7 +194,7 @@
 }
 
 enum bsc_con bsc_create_new_connection(struct gsm_subscriber_connection *conn,
-			      struct osmo_msc_data *msc, int send_ping)
+			      struct bsc_msc_data *msc, int send_ping)
 {
 	struct osmo_bsc_sccp_con *bsc_con;
 	struct sccp_connection *sccp;