net: usb: use eth_hw_addr_set() instead of ether_addr_copy()

[ Upstream commit af804e6d ]

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 got through appropriate helpers.

Convert net/usb from ether_addr_copy() to eth_hw_addr_set():

  @@
  expression dev, np;
  @@
  - ether_addr_copy(dev->dev_addr, np)
  + eth_hw_addr_set(dev, np)

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 8d93ff40 ("net: usb: lan78xx: fix use of improperly initialized dev->chipid in lan78xx_reset")
Signed-off-by: Sasha Levin <sashal@kernel.org>