src: use osmo_timer_setup()

Use new function available in libosmocore to set up timers. Compile
tested only.

Change-Id: Ibcfd915688e97d370a888888a83a7c95cbe16819
diff --git a/openbsc/src/utils/bs11_config.c b/openbsc/src/utils/bs11_config.c
index 8b05637..a0f3cb7 100644
--- a/openbsc/src/utils/bs11_config.c
+++ b/openbsc/src/utils/bs11_config.c
@@ -940,7 +940,7 @@
 	abis_nm_bs11_factory_logon(g_bts, 1);
 	//abis_nm_bs11_get_serno(g_bts);
 
-	status_timer.cb = status_timer_cb;
+	osmo_timer_setup(&status_timer, status_timer_cb, NULL);
 
 	while (1) {
 		if (osmo_select_main(0) < 0)