SDK: add sys-apps/debianutils

/sbin/installkernel (part of sys-apps/debianutils) is required for COS
kernel build. It used to be installed as a dependency to
app-misc/ca-certificates but no longer. Add it as a part of the SDK.

BUG=b/339258699
TEST=presubmit
RELEASE_NOTE=None

cos-patch: lts-refresh
Change-Id: I210c153887bac8598cf0b948352e1ac12bdbecf5
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/71171
Tested-by: Oleksandr Tymoshenko <ovt@google.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
1 file changed