export cgroup_setup_mode(), the function will be helpful for the
developers to take decisions/actions based on the cgroup setup mode the
system is booted with.
Suggested-by: Tom Hromatka <tom.hromatka@oracle.com> Signed-off-by: Kamalesh Babulal <kamalesh.babulal@oracle.com> Signed-off-by: Tom Hromatka <tom.hromatka@oracle.com>