[PATCH] [ARC] New option handling, refurbish multilib support.

[Claudiu Zissulescu]

> HEAD binutils supports '.cpu NPS400' and HEAD GCC also correctly emits
> '.cpu NPS400' (when -mcpu=nps400 is passed).  After your change we no
> longer correctly emit '.cpu NPS400'.
> 

Sorry for this miss-understanding. Updating the patch to emit .cpu NSPS400.

Thanks,
Claudiu