project-lakitu: Match upstream's containerd ebuild

Our containerd ebuild has not kept up with upstream. Let's update our
containerd ebuild to match Gentoo's containerd ebuild.

Docs and man pages should be stripped by the INSTALL_MASK. It should be
fine to keep those parts of the ebuild in sync with upstream.

BUG=b/176912333
TEST=presubmit
RELEASE_NOTE=None

Change-Id: Ic8c623c5035a2ee90e8e34861d5128704eb01e26
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/10801
Reviewed-by: Varsha Teratipally <teratipally@google.com>
Reviewed-by: Roy Yang <royyang@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
3 files changed