New port: Renesas RL78

[Nick Clifton]

Hi DJ,

> Hmmm... the only thing I can think of are the %hi8/%hi16/%lo16 style
> assembler reloc functions, and maybe documenting the comment chars
> etc.
>
> Other than those, it's a pretty boring port docs-wise :-)

Please could you include a gas documentation file anyway, even if it is 
pretty boring.

Also, please could you add entries to the gas/NEWS and ld/NEWS file 
mentioning support for the new architecture.

Do you have a gas testsuite sub-directory for the RL78 ?

Cheers
   Nick