libcgroup: fix the QA issue for pam_cgroup.so*

libcgroup: fix the QA issue for pam_cgroup.so*

PAM modules in ${base_libdir}/security/ should be binary .so files,
not symlinks, so fix this. Since pam_cgroup.so is installed into
${base_libdir}/security, move libcgroup.so.* to ${base_libdir} to
avoid "unsafe-references-in-binaries" QA issue.

(From OE-Core rev: 35567eed06ebd12f7c8ee0a04b6cb28530cf85d7)

Signed-off-by: Xin Ouyang <Xin.Ouyang@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>