[automerger skipped] libprocessgroup: use libcgrouprc to read cgroup.rc am: 53e0deb7b2 am: c2cb4aa768
am: 30559a8a00 -s ours
am skip reason: change_id I635d9885db62e82f37421f6d20f59c84a6f4cbb2 with SHA1 fad638c82d is in history

Change-Id: I531a2cc66c5374ad0a8ffdd0bb4e6b2294bfbf51