Merge "Adding OWNERS to foldable folder." into main am: 526620eee4 am: de20ae1f90 am: 29d1a0aa33

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2780967

Change-Id: I77421bb654e47ae5b000e85080b69656f00269d5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>