mtd: nand: cafe: clean up DMA address setup

Use macros from <linux/kernel.h> to make the code readable.
The compiler warning will be kept suppressed.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
1 file changed