Merge "Secretkeeper: use Ed25519 identity key" into main am: b87fae42d8

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2900721

Change-Id: Ia7d000341589307eff2b63d2af2d9b8e3cff95ae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>