Merge "Add OWNERS file for libgui_test module" into main am: ae7807505a am: b4c8a16013

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2650988

Change-Id: I03a978b5849200714d498685e541caa669816d59
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>