Copy config.sub from AM 1.13
Copy config.sub from AM 1.13

git-svn-id: 2afda2b79d79bda6893fa0ae4770e209b324d282@3926 a03fbada-158d-47ef-9f12-77e997805b15

Distrotech/nss_ldap,Distrotech/nss_ldap,Distrotech/nss_ldap