drivers/net: use __packed annotation

cleanup patch.

Use new __packed annotation in drivers/net/

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/3c527.h

@@ -34,7 +34,7 @@ struct mc32_mailbox
 {
  	u16 mbox;
  	u16 data[1];
-} __attribute((packed));
+} __packed;
 
 struct skb_header
 {
@@ -43,7 +43,7 @@ struct skb_header
 	u16 next;	/* Do not change! */
 	u16 length;
 	u32 data;
-} __attribute((packed));
+} __packed;
 
 struct mc32_stats
 {
@@ -68,7 +68,7 @@ struct mc32_stats
 	u32 dataA[6];
 	u16 dataB[5];
 	u32 dataC[14];
-} __attribute((packed));
+} __packed;
 
 #define STATUS_MASK	0x0F
 #define COMPLETED	(1<<7)