make: fail when ACI.txt or API.txt differs from values in source code
This regression was caused by commit 6acaf73b0c6f7301d5a5d4292a4f9926cc370867 before this commit make rpms failed when API.txt did not match api
https://fedorahosted.org/freeipa/ticket/5865
Reviewed-By: Lukas Slebodnik <lslebodn@redhat.com>