tile,mn10300: add device parameter to dma_cache_sync()

Since v2.6.20 "Pass struct dev pointer to dma_cache_sync()"
(d3fa72e4556ec1f04e46a0d561d9e785ecaa173d), dma_cache_sync() takes a
struct dev pointer, but these appear to be missing from the tile and
mn10300 implementations, so add them.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
[cmetcalf@tilera.com: took only the "tile" portion as I don't maintain mn10300]
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>