project-lakitu: add arping pakage

Change ebuild to be compatible with the lakitu build

BUG=b/178628254
TEST=manual validation and presubmit
RELEASE_NOTE=None

Change-Id: I422b7c1258217368a1a1132d31ebdb75113ea3ed
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/11672
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
2 files changed