MAINTAINERS: add maintainer entry for FREESCALE GPMI NAND driver

Add a maintainer entry for FREESCALE GPMI NAND driver and add myself as a
maintainer.

Signed-off-by: Han Xu <han.xu@nxp.com>
Acked-by: Huang Shijie <shijie.huang@arm.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index ce4a0d6..0db5eb9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4522,6 +4522,12 @@
 S:	Maintained
 F:	drivers/dma/fsldma.*
 
+FREESCALE GPMI NAND DRIVER
+M:	Han Xu <han.xu@nxp.com>
+L:	linux-mtd@lists.infradead.org
+S:	Maintained
+F:	drivers/mtd/nand/gpmi-nand/*
+
 FREESCALE I2C CPM DRIVER
 M:	Jochen Friedrich <jochen@scram.de>
 L:	linuxppc-dev@lists.ozlabs.org