20170101 currently unstable so will upgrade from 20140728 to 20161104

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/portage-stable/+/62ba989adfaa3593675a524c8db49a6c17bd19f4

commit 62ba989adfaa3593675a524c8db49a6c17bd19f4
Author: Edward Hill <ecgh@chromium.org>
Date: Mon Jun 12 17:45:48 2017

gnuconfig: upgraded package to upstream

Upgraded sys-devel/gnuconfig to version 20161104 on amd64, arm, x86

BUG= chromium:710067 
TEST=precq passes

Change-Id: I0959ad9a78f81e3b85d1b6b5712cdfd2c7dde5b4
Reviewed-on: https://chromium-review.googlesource.com/530156
Commit-Ready: Edward Hill <ecgh@chromium.org>
Tested-by: Edward Hill <ecgh@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>

[modify] https://crrev.com/62ba989adfaa3593675a524c8db49a6c17bd19f4/sys-devel/gnuconfig/Manifest
[add] https://crrev.com/62ba989adfaa3593675a524c8db49a6c17bd19f4/sys-devel/gnuconfig/files/99999999/0002-Add-x32-support-to-config.guess.patch
[rename] https://crrev.com/62ba989adfaa3593675a524c8db49a6c17bd19f4/sys-devel/gnuconfig/gnuconfig-20161104.ebuild
[add] https://crrev.com/62ba989adfaa3593675a524c8db49a6c17bd19f4/metadata/md5-cache/sys-devel/gnuconfig-20161104
[modify] https://crrev.com/62ba989adfaa3593675a524c8db49a6c17bd19f4/sys-devel/gnuconfig/metadata.xml
[delete] https://crrev.com/e4cdb5afc80244e8ef83effdec1d92a561959d77/metadata/md5-cache/sys-devel/gnuconfig-20140728
[add] https://crrev.com/62ba989adfaa3593675a524c8db49a6c17bd19f4/sys-devel/gnuconfig/files/99999999/0002-add-ps2-targets-to-config.sub.patch