dnsmasq: upgraded package to upstream

This CL adds these packages by cros_portage_upgrade:
- net-dns/dnsmasq version 2.90
- acct-user/dnsmasq version 0-r2
- acct-group/dnsmasq version 0-r2

Note that originally we have dnsmasq-2.85 at chromiumos-overlay. This CL
also copies some metadata from there.

BUG=b:326169178
TEST=emerge-brya dnsmasq
TEST=Run `tast run $(DUT) network.Shill*`, which use dnsamsq to create
     virtual routers inside netns
TEST=tast run $(DUT) network.ARCIPv6Connectivity

Cq-Depend: chromium:5334549
Cq-Depend: chromium:5342822
Change-Id: I337a3d1709ba5ca74fd7ab22663c3bdd9eb8473c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/5341157
Tested-by: Chih-Yu Huang <akahuang@chromium.org>
Reviewed-by: Hugo Benichi <hugobenichi@google.com>
Reviewed-by: Benjamin Gordon <bmgordon@chromium.org>
Reviewed-by: Jie Jiang <jiejiang@chromium.org>
Commit-Queue: Chih-Yu Huang <akahuang@chromium.org>
17 files changed