This patch enables MediaTek NAND BBT on I-O DATA devices manufactured by MSTC (MitraStar Technology Corp.). [WN-AX2033GR] Tested-by: Yanase Yuki <dev@zpc.sakura.ne.jp> [WN-AX1167GR2, WN-DX1167R, WN-DX1200GR, WN-DX2033GR] Tested-by: INAGAKI Hiroshi <musashino.open@gmail.com> Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>