[PATCH] ARM: dmabounce: fix partial sync in dma_sync_single_* API

[Russell King - ARM Linux]

> Ping?
> 
> Is this going to be merged via the arm tree?

Ping all you want; I've only just got back online after a week of no
internet connectivity thanks to the carrier being unable to fix the
problem (the faulty line is still faulty.)

I'm now going to be catching up over the course of the next week, so
please be patient.