Create OWNERS file for secretkeeper interface am: 5afbeec13d am: c8a37376cc

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2864267

Change-Id: I3c672951c40b882aa6bfb86602c28936b875c70f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>