RT75957. kinetis nand: import an existing NAND driver

Import the existing NAND Flash Controller driver for MCF5441x from
http://repository.timesys.com/buildsources/u/u-boot/u-boot-2009.08/u-boot-2009.08-mfc5441x.patch

The NAND Flash Controllers on MCF5441x and Kinetis are compatible, we
will use this driver for Kinetis.

drivers/mtd/nand/Makefile

@@ -50,6 +50,7 @@ COBJS-$(CONFIG_NAND_S3C64XX) += s3c64xx.o
 COBJS-$(CONFIG_NAND_SPEAR) += spr_nand.o
 COBJS-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o
 COBJS-$(CONFIG_NAND_PLAT) += nand_plat.o
+COBJS-$(CONFIG_NAND_FSL_NFC) += fsl_nfc.o
 endif
 
 COBJS	:= $(COBJS-y)