[RFA] Add rl78 to NEWS, MAINTAINERS, and Makefile.in

[Eli Zaretskii]

> Date: Tue, 14 Feb 2012 15:37:34 -0700
> From: Kevin Buettner <kevinb@redhat.com>
> 
> I think I need approval for the NEWS entry.

You've got it.

Thanks.