UBI: Fastmap: Add a module parameter to enable fastmap

The new parameter, ubi.fm_auto is per default 0.
If you attach an old image without a fastmap installed
UBI will not install a fastmap an work like in the old days.
But attaching by fastmap will work too if you attach a new image.
Of course in this case the fastmap will also get updated.

Is ubi.fm_auto set to 1 UBI automatically installs a fastmap
on old images.
This can be used to convert old images to have fastmap support.

Signed-off-by: Richard Weinberger <richard@nod.at>
3 files changed