This patch removes the permission change from control_group_create function

This patch removes the permission change from control_group_create function
It should be done only if the caller needs it not by default.

EXAMPLE:
before the change:
# ./tools/cgcreate -g devices:/test1
# ll /cgroup/cpu3/test1
total 0
-rwxrwxr-x. 1 root root 0 2010-11-02 08:05 cgroup.procs
-rwxrwxr-x. 1 root root 0 2010-11-02 08:05 devices.allow
-rwxrwxr-x. 1 root root 0 2010-11-02 08:05 devices.deny
-rwxrwxr-x. 1 root root 0 2010-11-02 08:05 devices.list
-rwxrwxr-x. 1 root root 0 2010-11-02 08:05 notify_on_release
-rwxrwxr-x. 1 root root 0 2010-11-02 08:05 tasks
# ll /cgroup/cpu3/ | grep test1
drwxrwxr-x. 2 root root 0 2010-11-02 08:05 test1

after the change:
# ./tools/cgcreate -g devices:/test2
# ll /cgroup/cpu3/test2
total 0
-r--r--r--. 1 root root 0 2010-11-02 08:04 cgroup.procs
--w-------. 1 root root 0 2010-11-02 08:04 devices.allow
--w-------. 1 root root 0 2010-11-02 08:04 devices.deny
-r--r--r--. 1 root root 0 2010-11-02 08:04 devices.list
-rw-r--r--. 1 root root 0 2010-11-02 08:04 notify_on_release
-rw-r--r--. 1 root root 0 2010-11-02 08:04 tasks
# ll /cgroup/cpu3/ | grep test2
drwxr-xr-x. 2 root root 0 2010-11-02 08:04 test2

Signed-off-by: Ivana Hutarova Varekova<varekova@redhat.com>
Signed-off-by: Jan Safranek <jsafrane@redhat.com>