This adds some updates to the NAND driver and refreshed the config.
Most of these changes are done in preparation for mainling it.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43546 3c298f89-4303-0410-b956-a3cf2f4a3e73