comment: indicate struct type for mgcp_endpoint.conns

Change-Id: Ia65359c22da3e7b28e3f23b36446ca434ca0be8c
diff --git a/include/osmocom/mgcp/mgcp_endp.h b/include/osmocom/mgcp/mgcp_endp.h
index d834c09..a23e192 100644
--- a/include/osmocom/mgcp/mgcp_endp.h
+++ b/include/osmocom/mgcp/mgcp_endp.h
@@ -69,7 +69,7 @@
 	/*! Local connection options (see mgcp_internal.h) */
 	struct mgcp_lco local_options;
 
-	/*! List with connections active on this endpoint */
+	/*! List of struct mgcp_conn, of the connections active on this endpoint */
 	struct llist_head conns;
 
 	/*! Backpointer to the MGW configuration */