dfu: Properly zero out timeout value

Zero out timeout value; letting it filled with undefined values
ends up with the dfu host hanging.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>

drivers/usb/gadget/f_dfu.c

@@ -164,6 +164,9 @@ static void handle_getstatus(struct usb_request *req)
 
 	/* send status response */
 	dstat->bStatus = f_dfu->dfu_status;
+	dstat->bwPollTimeout[0] = 0;
+	dstat->bwPollTimeout[1] = 0;
+	dstat->bwPollTimeout[2] = 0;
 	dstat->bState = f_dfu->dfu_state;
 	dstat->iString = 0;
 }