mpt fusion: use dev_addr_set()

Commit 406f42fa ("net-next: When a bond have a massive amount
of VLANs...") introduced a rbtree for faster Ethernet address look
up. To maintain netdev->dev_addr in this tree we need to make all
the writes to it go through appropriate helpers.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/message/fusion/mptlan.c

@@ -1350,7 +1350,7 @@ mpt_register_lan_device (MPT_ADAPTER *mpt_dev, int pnum)
 	HWaddr[5] = a[0];
 
 	dev->addr_len = FC_ALEN;
-	memcpy(dev->dev_addr, HWaddr, FC_ALEN);
+	dev_addr_set(dev, HWaddr);
 	memset(dev->broadcast, 0xff, FC_ALEN);
 
 	/* The Tx queue is 127 deep on the 909.