usb-hub: add tracepoint for status reports

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/trace-events b/trace-events
index f849807..754c28c 100644
--- a/trace-events
+++ b/trace-events
@@ -411,6 +411,7 @@
 usb_hub_clear_port_feature(int addr, int nr, const char *f) "dev %d, port %d, feature %s"
 usb_hub_attach(int addr, int nr) "dev %d, port %d"
 usb_hub_detach(int addr, int nr) "dev %d, port %d"
+usb_hub_status_report(int addr, int status) "dev %d, status 0x%x"
 
 # hw/usb/dev-uas.c
 usb_uas_reset(int addr) "dev %d"