Backporting ARC patch to gcc7.x

[Jeff Law]

On 11/15/2017 06:49 AM, Claudiu Zissulescu wrote:
> Hi,
> 
> I would like to backport patch r250097 to gcc7.x branch. It does changes libgcc/config.host and gcc/config.gcc for ARC. Do I need to get extra approvals for it or I just fallow the wiki on this page (https://gcc.gnu.org/wiki/SvnMerge).
> 
We've generally considered those clauses under the umbrella of the port
maintainers.

jeff