firewire: Implement topology map and fix a couple of loopback bugs.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

diff --cc drivers/firewire/fw-card.c
Simple merge

diff --cc drivers/firewire/fw-ohci.c
Simple merge

diff --cc drivers/firewire/fw-topology.c
Simple merge

diff --cc drivers/firewire/fw-topology.h
Simple merge

diff --cc drivers/firewire/fw-transaction.c
Simple merge

diff --cc drivers/firewire/fw-transaction.h
Simple merge