include: Convert ethernet mac address declarations to use ETH_ALEN

It's convenient to have ethernet mac addresses use
ETH_ALEN to be able to grep for them a bit easier and
also to ensure that the addresses are __aligned(2).

Add #include <linux/if_ether.h> as necessary.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/dm9000.h b/include/linux/dm9000.h
index 96e8769..841925f 100644
--- a/include/linux/dm9000.h
+++ b/include/linux/dm9000.h
@@ -14,6 +14,8 @@
 #ifndef __DM9000_PLATFORM_DATA
 #define __DM9000_PLATFORM_DATA __FILE__
 
+#include <linux/if_ether.h>
+
 /* IO control flags */
 
 #define DM9000_PLATF_8BITONLY	(0x0001)
@@ -27,7 +29,7 @@
 
 struct dm9000_plat_data {
 	unsigned int	flags;
-	unsigned char	dev_addr[6];
+	unsigned char	dev_addr[ETH_ALEN];
 
 	/* allow replacement IO routines */