Add more Gatekeeper OWNERS am: b75cfb13cd am: f2d3abde2f

Original change: https://android-review.googlesource.com/c/platform/system/gatekeeper/+/2477516

Change-Id: I81e39fb597b294f719e091cd952b9dad0cf74ba5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>