WIP osc to cs12 upgrade changes

The documentation for upgrades is still in progress. ec-metal is being updated to follow the docs.  For now I've forced the update orgs to "ecmetal".  When this works I'll move that in the configuration.
no.  the osc to ec upgrade path has its own upgrade resource block with the help of guards.  After this release it may be better to consider have two separate recipes. I already have a card some place.