Obsolete i960

[Andrew Cagney]

Hello,

The i960 is currently not multi-arched.  If the i960 isn't converted to 
use the multi-arch framework it will be made obsolete.

If any one in the MAINTAINERS file wants to multi-arch it, feel free - 
multi-arching is considered obvious.  Just do it incrementally.

If anyone else is interested in multi-arching this target, please first 
ensure that you have a GPL assignment for GDB in place.

enjoy,
Andrew