[PATCH] fsldma: use PCI Read Multiple command

[Liu Dave-R63238]

> >> You can mark the pci inbound window on the 83xx as 
> >> non-prefetchable(assuming 83xx is host). On a x86 host
> >> I doubt there is any easy way to get non-prefetchable memory.

> One more note; we don't have access to a host-mode MPC8349EA,
> our boards are all targets.

Actually we also can use the inbound window(w/wo prefetchable)
in the agent mode. It doesn't care if it is host or agent.