rptun: add ns_match callback to resolve rptun deadlock

thread A: accept -> net_lock -> socket_rpmsg_accept
          -> rpmsg_register_callabck -> rptun_lock
thread B: ns_bind -> rpmsg_socket_ns_bind -> get_tx_payload_buffer
          -> rptun_wait_tx -> usrsock_rpmsg_ept_cb -> usrsockdev_write
          -> net_lock -> deadlock

fix:
add ns_match callback

Signed-off-by: ligd <liguiding1@xiaomi.com>

drivers/syslog/syslog_rpmsg.c

@@ -450,5 +450,6 @@ int syslog_rpmsg_init(void)
   return rpmsg_register_callback(&g_syslog_rpmsg,
                                  syslog_rpmsg_device_created,
                                  syslog_rpmsg_device_destroy,
+                                 NULL,
                                  NULL);
 }