project-lakitu: Add ebuild for kernel 6.6

Includes the tdx patches from the 6.1 ebuild.

BUG=b/316205830
TEST=presubmit
RELEASE_NOTE=None

Change-Id: Iad8c63dbc8ac70abc998d5f001f48b1e88447528
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/68010
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Oleksandr Tymoshenko <ovt@google.com>
33 files changed