RFA: Fix h8300 --enable-werror-always build

[Kazu Hirata]

Hi Joern,

> This patch contains the h8300-specific patches to fix the
> --enable-werror-all
> build of h8300-elf; it should be used together with the patches to the
> machine-independent code posted here:
> http://gcc.gnu.org/ml/gcc-patches/2010-11/msg00452.html
> http://gcc.gnu.org/ml/gcc-patches/2010-11/msg00453.html

Looks good to me.  Thanks!

Kazu Hirata