https://github.com/projectcalico/calico/ has moved to
https://github.com/projectcalico/felix/. This change updates
the calico_git_repo variable accordingly.
The role SHA for os_neutron is updated as the updated SHA
includes the same fix. Without it the repo build process
tries to access both repositories.
Change-Id: I723174204005f75f481733908ebcef74ce5074d6
Closes-Bug: #1631362