Convert the pinctrl ocelot binding to the new YAML format. Pin
configuration nodes should have a "-pins" postfix. But unfortunately,
there are many device trees which don't follow this. First rename
all these nodes and then convert the binding to the YAML format so
that the validation will pass.
Because there were no maintainers before and there is none in
MAINTAINERS I added Alexandre Belloni and Lars Povlsen, juding by
the commits - to the binding as maintainers. Please tell me if you
disagree.