Add support for mediatek's SDG1 NFC nand controller embedded in SoC
2701
Signed-off-by: NJorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: NXiaolei Li <xiaolei.li@mediatek.com>