ARM: PL08x: use 'u32' for LLI structure members, not dma_addr_t

Use 'u32' for the LLI structure members, which are defined by hardware
to be 32-bit.  dma_addr_t is much more vague about its actual size.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>