firewire-lib: fix typo
oxfw: Add a quirk to start transmitting packets with non-zero dbc

OXFW may have this quirk.
firewire-lib: Add sorting in-packets for full duplex streams with sync

In full duplex streams with synchronization, consistency of SYT field in
in-packets is important for out-packets. This commit add sorting in-packets
according to the value of dbc.