ms: fix blocking logging

Change-Id: I0f5dcb13d1bd9e626e1eeab6ca767ca1b5ae43b8
diff --git a/Transceiver52M/ms/logging.c b/Transceiver52M/ms/logging.c
index 9ee0738..ee59299 100644
--- a/Transceiver52M/ms/logging.c
+++ b/Transceiver52M/ms/logging.c
@@ -76,6 +76,7 @@
 void trxc_log_init(void *tallctx)
 {
 	osmo_init_logging2(tallctx, &trxcon_log_info);
+	log_target_file_switch_to_wqueue(osmo_stderr_target);
 
 	trxcon_set_log_cfg(&trxcon_log_cfg[0], ARRAY_SIZE(trxcon_log_cfg));
 }