To take advantage of newer features of RHEL 7.3 (more specifically NetworkManager DHCP timeout option - http://projects.theforeman.org/issues/15195) and also to get newest security updates, let's rebase FDI onto RHEL 7.3.
REL-ENG: Please change source repositories in dist-git kickstart to 7.3 and rebuild.
QA NOTES: To verify, just test if discovery works as expected.
TRIAGE: Rel-eng only task, no changes. Upstream FDI 3.3 is already based on CentOS 7.3 and it works fine.