8196062: Enable docker container related tests for linux ppc64le
Summary: also fix cgroup subsystem recognition
Reviewed-by: goetz, dsamersoff, bobv
# test on x86_64 uses Oracle Linux but we do not have this for ppc64le# so use some other Linux where OpenJDK works # FROM oraclelinux:7.2FROM ppc64le/ubuntuCOPY /jdk /jdkENV JAVA_HOME=/jdkCMD ["/bin/bash"]