Add code to make the dma driver load as a platform device from the devicetree.
Signed-off-by: NJohn Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3824/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>