CACHE_REQ_RESULT: Introduce cache_req_create_ldb_result_from_msg_list()
Similarly to what cache_req_create_ldb_result_from_msg() does this new
function creates a new ldb_result from a list of ldb_message.
It's going to be used in the follow-up patch where some messages from
ldb_result may be filtered and then a new ldb_result has to be created.
Related:
https://pagure.io/SSSD/sssd/issue/3362
Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
Reviewed-by: Pavel Březina <pbrezina@redhat.com>