first dispatch of RUA into RANAP

This is becoming more and more of a hack, as asn1c + asn1tostruct.py
don't really deal well with the RANAP syntax :(
diff --git a/src/hnbgw.c b/src/hnbgw.c
index 7c12155..2c49c4d 100644
--- a/src/hnbgw.c
+++ b/src/hnbgw.c
@@ -45,6 +45,10 @@
 	if (!msg)
 		return -ENOMEM;
 
+	/* we store a reference to the HomeNodeB in the msg->dest for the
+	 * benefit of varoius downstream processing functions */
+	msg->dst = hnb;
+
 	rc = sctp_recvmsg(fd->fd, msgb_data(msg), msgb_tailroom(msg),
 			  NULL, NULL, &sinfo, &flags);
 	if (rc < 0) {