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

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

Change-Id: I941d4dd72977f2d339c046beba51a1e029ecec81
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>