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: 245f7d88 am: 9e3db7e0

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



Change-Id: I91fc97b927359f594698784f0f6677538eef37e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>