libseccomp: upgraded package to upstream

Upgraded sys-libs/libseccomp to version 2.4.2-r1 on amd64, arm

BUG=b:155372505
TEST=pre-cq

Change-Id: I36070796e4fc91b36b27c4ef969caa4a4e71311d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2174917
Tested-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Robert Kolchmeyer <rkolchmeyer@google.com>
6 files changed