write_queue: Add osmo_wqueue_enqueue_quiet()

Same as osmo_wqueue_enqueue() but without logging queue overruns.

Change-Id: Ic082eb39795b08631284eeb421fef3c28f2e90dc
diff --git a/include/osmocom/core/write_queue.h b/include/osmocom/core/write_queue.h
index 071621d..75d5d8f 100644
--- a/include/osmocom/core/write_queue.h
+++ b/include/osmocom/core/write_queue.h
@@ -53,6 +53,7 @@
 void osmo_wqueue_init(struct osmo_wqueue *queue, int max_length);
 void osmo_wqueue_clear(struct osmo_wqueue *queue);
 int osmo_wqueue_enqueue(struct osmo_wqueue *queue, struct msgb *data);
+int osmo_wqueue_enqueue_quiet(struct osmo_wqueue *queue, struct msgb *data);
 int osmo_wqueue_bfd_cb(struct osmo_fd *fd, unsigned int what);
 
 /*! @} */