[sccp] Create a method to create RLSD messages.
diff --git a/openbsc/include/sccp/sccp.h b/openbsc/include/sccp/sccp.h
index c3512bb..b715497 100644
--- a/openbsc/include/sccp/sccp.h
+++ b/openbsc/include/sccp/sccp.h
@@ -150,6 +150,7 @@
struct msgb *sccp_create_refuse(struct sccp_source_reference *src_ref, int cause, uint8_t *data, int length);
struct msgb *sccp_create_cc(struct sccp_source_reference *src_ref, struct sccp_source_reference *dst_ref);
+struct msgb *sccp_create_rlsd(struct sccp_source_reference *src_ref, struct sccp_source_reference *dst_ref, int cause);
/**
* Below this are helper functions and structs for parsing SCCP messages