Import libosmocore timer infrastructure and use it for PERST
The PERST is thus no longer busy-waiting but starting a timer to release
the PERST after 1ms.
diff --git a/firmware/src_simtrace/main.c b/firmware/src_simtrace/main.c
index 62fcbe2..d44cc44 100644
--- a/firmware/src_simtrace/main.c
+++ b/firmware/src_simtrace/main.c
@@ -357,6 +357,8 @@
putchar(rotor[i++ % ARRAY_SIZE(rotor)]);
#endif
check_exec_dbg_cmd();
+ osmo_timers_prepare();
+ osmo_timers_update();
if (USBD_GetState() < USBD_STATE_CONFIGURED) {