Merge "Check if freezer cgroup configuration is valid" into udc-dev am:...

Merge "Check if freezer cgroup configuration is valid" into udc-dev am: 8c9fd0d8 am: e5a5664c am: 170f483b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22918310



Change-Id: Ica715d1f97b3df0566f25522676e94813d015626
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>