Fix wrong option name in kolla-build.conf
Fix wrong option name in kolla-build.conf

The install type can now be change by specifying the correct option
name.

Change-Id: I612afc3df1e0e1bdfa9243417537eb176f0d89cc
Closes-Bug: #1501327

mandre/kolla,rajalokan/kolla,nihilifer/kolla,mandre/kolla,intel-onp/kolla,mrangana/kolla,negronjl/kolla,stackforge/kolla,toby82/kolla,dardelean/kolla-ansible,rahulunair/kolla,negronjl/kolla,limamauricio/mykolla,openstack/kolla,nihilifer/kolla,rajalokan/kolla,toby82/kolla,tonyli71/kolla,intel-onp/kolla,coolsvap/kolla,limamauricio/mykolla,coolsvap/kolla,coolsvap/kolla,stackforge/kolla,tonyli71/kolla,GalenMa/kolla,openstack/kolla,GalenMa/kolla,rajalokan/kolla,dardelean/kolla-ansible,mrangana/kolla,stackforge/kolla,mandre/kolla,limamauricio/mykolla,rahulunair/kolla,negronjl/kolla,toby82/kolla,dardelean/kolla-ansible