usb: dwc3: debug: fix ep name on trace output

There was a typo when generating endpoint name which
would be very confusing when debugging. Fix it.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/dwc3/debug.h

@@ -192,7 +192,7 @@ dwc3_ep_event_string(const struct dwc3_event_depevt *event)
 	int ret;
 
 	ret = sprintf(str, "ep%d%s: ", epnum >> 1,
-			(epnum & 1) ? "in" : "in");
+			(epnum & 1) ? "in" : "out");
 	if (ret < 0)
 		return "UNKNOWN";