chroot_version_hooks.d: install zstd from source if needed

If people haven't updated their SDK, then installing zstd from a binpkg
fails because it's a binpkg using zstd.  Build it from source.

BUG=b:187789829
TEST=CQ passes

Change-Id: I6255510308649d40b6d437e62af880f1f814cb30
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/3626114
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Chris McDonald <cjmcdonald@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
6 files changed