RFA: Add *-storm-chaos to config.sub

[Ben Elliston]

G'day Nick,

     May I have permission to apply the following patch to config.sub ?
     It adds support for the *-storm-chaos target which was part of a
     patch submitted some time ago by Per Lundberg, but only recently
     accepted into sourceware.

That patch looks fine -- go ahead.  I'll file this patch away and will apply
it to the official version of config.sub in the near future.

I'd be keen to run an operating system called "Chaos". ;-)

Cheers, Ben