openldap: upgrade 2.4.40 -> 2.4.41

1) Dropped backported patches(commit-id):
-0001-ITS-8027-require-non-empty-AttributeList.patch(c32e747)
-0001-ITS-8046-fix-vrFilter_free.patch(2f1a2dd)

2) Update the checksum of COPYRIGHT,since the date in it has been changed,
but the LICENSE has not been changed.

Signed-off-by: Li Xin <lixin.fnst@cn.fujitsu.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>