[horizon] change settings prefix for ubuntu/binary
[horizon] change settings prefix for ubuntu/binary

Use /usr/share/openstack-dashboard/openstack_dashboard/local/
instead of site-packages/** for ubuntu/binary installs.

Change-Id: I4043d1439012afa0100e94c40d1dec2ef92152d4
Closes-Bug: #1773105
Signed-off-by: Jorge Niedbalski <c306b413ed4d10f0564ceec57804dfc191869a8a@linaro.org>

openstack/kolla,stackforge/kolla,rahulunair/kolla,rahulunair/kolla,stackforge/kolla,openstack/kolla,stackforge/kolla