drivers/net/: all drivers/net/ cleanup with ARRAY_SIZE

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index cb230f4..17c1e15 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -204,7 +204,7 @@
 	},
 };
 
-#define MAX_NUM_SETTINGS (sizeof(settings)/sizeof(struct phy_setting))
+#define MAX_NUM_SETTINGS ARRAY_SIZE(settings)
 
 /**
  * phy_find_setting - find a PHY settings array entry that matches speed & duplex