expat: upgraded package to upstream

Upgraded dev-libs/expat to version 2.2.9 on amd64

BUG=chromium:1045032
TEST=CQ passes

Change-Id: Ia9fe94d276ad7cfd3804aa4721a3ef17ecccda6c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2116653
Tested-by: Amin Hassani <ahassani@chromium.org>
Tested-by: George Engelbrecht <engeg@google.com>
Auto-Submit: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Commit-Queue: Amin Hassani <ahassani@chromium.org>
3 files changed