Create OWNERS file for secretkeeper interface am: 5afbeec13d am: c8a37376cc am: 2fbeab14f0

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

Change-Id: I56445cbc00428c3d503755b3fe5d6c1d010f6064
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>