Fix JFFS2 support for legacy NAND driver.

Makefile

board/amcc/bamboo/config.mk

board/dave/PPChameleonEVB/config.mk

board/delta/config.mk

board/delta/nand.c

board/esd/ash405/config.mk

board/esd/cms700/config.mk

board/esd/common/auto_update.c

board/esd/cpci405/config.mk

board/esd/hh405/config.mk

board/esd/hub405/config.mk

board/esd/plu405/config.mk

board/esd/voh405/config.mk

board/esd/wuh405/config.mk

board/netphone/config.mk

board/netstar/config.mk

board/netta/netta.c

board/netta2/config.mk

board/netvia/config.mk

board/sixnet/config.mk