net: sh_eth: add value of ether_link pin in platform_data

The method of ETHER_LINK pin is board dependence.
This patch adding paramters are:
 - no_ether_link          : If set to 1, do not use ETHER_LINK
 - ether_link_active_low  : If set to 1, ETHER_LINK is active low.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sh_eth.h b/drivers/net/sh_eth.h
index 9afe5b4..ba151f8 100644
--- a/drivers/net/sh_eth.h
+++ b/drivers/net/sh_eth.h
@@ -729,6 +729,9 @@
 	char post_rx;		/* POST receive */
 	char post_fw;		/* POST forward */
 	struct net_device_stats tsu_stats;	/* TSU forward status */
+
+	unsigned no_ether_link:1;
+	unsigned ether_link_active_low:1;
 };
 
 static inline void sh_eth_soft_swap(char *src, int len)