eselect-iptables: upgraded package to upstream

Upgraded app-eselect/eselect-iptables to version 20200508 on amd64.

This commit adds eselect-iptables, which was needed to update
iptables.

BUG=b/173158844
TEST=presubmit
RELEASE_NOTE=none

Change-Id: I40d1b81a89c5b5279a49bf6c5032799d92076946
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/portage-stable/+/9000
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
4 files changed