mgw: Add support for setting socket priority from VTY

This is useful for affecting the 802.1Q PCP value without any separate
external packet filter rules for classification.

Change-Id: I69136c6dd114c24b1dace034e75dba5157bac37e
Depends: libosmocore.git I89abffcd125e6d073338a5c6437b9433220e1823
diff --git a/src/libosmo-mgcp/mgcp_osmux.c b/src/libosmo-mgcp/mgcp_osmux.c
index 62a6720..bb85735 100644
--- a/src/libosmo-mgcp/mgcp_osmux.c
+++ b/src/libosmo-mgcp/mgcp_osmux.c
@@ -418,7 +418,8 @@
 
 	osmo_fd_setup(&osmux_fd, -1, OSMO_FD_READ, osmux_read_fd_cb, cfg, 0);
 
-	ret = mgcp_create_bind(cfg->osmux_addr, &osmux_fd, cfg->osmux_port, cfg->endp_dscp);
+	ret = mgcp_create_bind(cfg->osmux_addr, &osmux_fd, cfg->osmux_port,
+				cfg->endp_dscp, cfg->endp_priority);
 	if (ret < 0) {
 		LOGP(DLMGCP, LOGL_ERROR, "cannot bind OSMUX socket to %s:%u\n",
 		     cfg->osmux_addr, cfg->osmux_port);