net: Move sungem_phy.h under include/linux

Fixes build failures of the spider_net driver because it tries
to use a convoluted path to include this header.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/toshiba/spider_net.h b/drivers/net/ethernet/toshiba/spider_net.h
index a891ad0..4ba2135 100644
--- a/drivers/net/ethernet/toshiba/spider_net.h
+++ b/drivers/net/ethernet/toshiba/spider_net.h
@@ -27,7 +27,7 @@
 
 #define VERSION "2.0 B"
 
-#include "./ethernet/sun/sungem_phy.h"
+#include <linux/sungem_phy.h>
 
 extern int spider_net_stop(struct net_device *netdev);
 extern int spider_net_open(struct net_device *netdev);