kconfiglib: upgraded package to upstream

Upgraded dev-python/kconfiglib to version 14.1.0 on amd64

We already use Kconfiglib, but the package is used from a copy in the
Zephyr RTOS tree.

Bring in the portage package so that we can use it more universally
than just Zephyr (depthcharge has plans).

BUG=b:174867121
TEST=sudo emerge kconfiglib
     run "menuconfig" and "genconfig" in the chroot to test

Change-Id: I23ab26e9bb99ac10d92b6da76d8bb9a2d849ca20
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2577864
Tested-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
5 files changed