zaurus.inc: add framework for ubifs image types
zaurus.inc: add framework for ubifs image types

* In preparation for the next kexecboot release.
* tested on poodle, c7x0 and spitz 3200
* (the different partitioning btw spitz models will be
* detected by kexecboot)

Signed-off-by: Andrea Adami <58a22b0beb8ec13ae546a060c8b4c576f22f6153@gmail.com>

bluelightning/meta-handheld,bluelightning/meta-handheld