spi: mediatek: add spi support for mt2712 IC

this patch add support for mt2712 IC.

Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
1 file changed