[PATCH]fs/jffs2/wbuf.c: add compatibility support for OOB data block

[Ferenc Havasi]

Hi Steven!

> But then: what is the status of CS? For NOR?

Now it seems to be stable enough (at least the version which uses the
first erase block seems to store reference pointer) thanks to an active
user (realmsys). It is even more faster than EBS, but now it is still
working with NAND. And I think there are also things that should make
nicer in our code similar to EBS.

Bye,
Ferenc