Merge "Adapt to libprocessgroup API changes for polling on cgroup.events" into main am: 50ebacbc am: 6e1172fa

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



Change-Id: I189257d148b697abe071471c43e1b0b144be8275
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>