usb: dwc3: trace: pass trace buffer size to decoding functions

Instead of assuming that our buffer is big enough, let's pass the
buffer size around so printing functions can make sure they won't
overflow the buffer.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/dwc3/trace.h

@@ -59,8 +59,8 @@ DECLARE_EVENT_CLASS(dwc3_log_event,
 		__entry->ep0state = dwc->ep0state;
 	),
 	TP_printk("event (%08x): %s", __entry->event,
-			dwc3_decode_event(__get_str(str), __entry->event,
-					  __entry->ep0state))
+			dwc3_decode_event(__get_str(str), DWC3_MSG_MAX,
+					__entry->event, __entry->ep0state))
 );
 
 DEFINE_EVENT(dwc3_log_event, dwc3_event,
@@ -86,7 +86,8 @@ DECLARE_EVENT_CLASS(dwc3_log_ctrl,
 		__entry->wIndex = le16_to_cpu(ctrl->wIndex);
 		__entry->wLength = le16_to_cpu(ctrl->wLength);
 	),
-	TP_printk("%s", dwc3_decode_ctrl(__get_str(str), __entry->bRequestType,
+	TP_printk("%s", dwc3_decode_ctrl(__get_str(str), DWC3_MSG_MAX,
+					__entry->bRequestType,
 					__entry->bRequest, __entry->wValue,
 					__entry->wIndex, __entry->wLength)
 	)