adjust drv_eth.c's head files
* 2019-09-03 xiaofan optimize link change detection process
*/
-#include "board.h"
#include "drv_config.h"
-#include <netif/ethernetif.h>
-#include "lwipopts.h"
#include "drv_eth.h"
+#include <netif/ethernetif.h>
+#include <lwipopts.h>
/*
* Emac driver uses CubeMX tool to generate emac and phy's configuration,
