sys_util_core won't have OS specific features so that sys_util and
win_sys_util can depend on it.
Test: Presubmit
Bug: b:213149154
Upstream-Crate: common/win_sys_util
Cq-Depend: chromium:3433709
Change-Id: I863f7a6bc7549944b4d114cca6d7be04c3093fc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3426380
Reviewed-by: Dennis Kempin <denniskempin@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
