Add haproxy placement site definition

Till Queens release accessing to / of nova placement returned
401 Error. It was fixed by [0]. This patch adds site definition for
nova-placement which uses type as other services.

[0]
https://github.com/openstack/nova/commit/c4c1770475b4b0cbd57bc56677eeca1326973f76

Change-Id: I5937940cd307414a337ceeffb3027e108da809c2
1 file changed