[PATCH] Fixup in NAND bad block management + fix of misspring.(nand_base.c)

[Alexey, Korolev]

Thomas,

> I still do not get why you need all this magic instead of fixing up
> this->badblockpos in the first place.
>
Fixing this->badblockpos in low level driver will not help because, 
according to the code this->badblockpos updates in nand_base.c 
unconditionally.
Moreover it's rather hard to define the conditions, because by default 
structure "this" is filled by zeroes. (We can't distinguish advisedly 
setting of badblockpos from the default value).