Merge "Adapt to libprocessgroup API changes for polling on cgroup.events" into main am: 50ebacbcc8 am: 6e1172fa08 am: 1299e2bac7

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2812833

Change-Id: I58f77f8a04805a9e0c19d4bb829ffef94e22fee4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>