p7zip: upgraded package to upstream

Upgraded app-arch/p7zip to version 16.02-r8.

BUG=None
TEST=CQ passes

Change-Id: Iefda44b33766e95f6090af4e62e5ec45ba129d62
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2925215
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Sergey Frolov <sfrolov@google.com>
6 files changed