macvlan/macvtap: Fix unicast between macvtap interfaces in bridge mode

macvlan/macvtap: Fix unicast between macvtap interfaces in bridge mode

[ Upstream commit cb2d0f3e968bff7c6d262aca3e3ab8d4184e69b2 ]

Packets should always be forwarded to the lowerdev using dev_forward_skb.
vlan->forward is for packets being forwarded directly to another macvlan/
macvtap device (used for multicast in bridge mode).

Reported-and-tested-by: Shlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: David Ward <david.ward@ll.mit.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>