Add a maintainer entry for FREESCALE GPMI NAND driver and add myself as a
maintainer.
Signed-off-by: NHan Xu <han.xu@nxp.com>
Acked-by: NHuang Shijie <shijie.huang@arm.com>
Signed-off-by: NBrian Norris <computersforpeace@gmail.com>