meminfo: memevents: Adding OOM tests am: 1755b53899 am: 07bed6cba4 am: f693c49fd1

Original change: https://android-review.googlesource.com/c/platform/system/memory/libmeminfo/+/2755696

Change-Id: Id4c170aeef68d1cb85abdba3421edc8b4a3e7d0e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>