move ran_conn declarations to new ran_conn.h
With the dawn of inter-BSC,MSC handover, adopting the MSC-A,-I,-T roles from
3GPP TS 49.008, the RAN connection shall soon be a neatly separated corner of
osmo-msc, so gravitate ran_conn decarations to files of matching name.
Also, the current chaos of API defined in files with mismatching/meaningless
names drives me crazy.
Change-Id: Ice31e6c43e46678538c65261f150c67e1d0845e5
diff --git a/include/osmocom/msc/gsm_subscriber.h b/include/osmocom/msc/gsm_subscriber.h
index ec2d3a4..428b889 100644
--- a/include/osmocom/msc/gsm_subscriber.h
+++ b/include/osmocom/msc/gsm_subscriber.h
@@ -8,6 +8,8 @@
#include <osmocom/msc/gsm_data.h>
+struct ran_conn;
+
#define GSM_NAME_LENGTH 160
#define GSM_EXTENSION_LENGTH 15 /* MSISDN can only be 15 digits length */