keystobe V3: make horizon identity policy file consistent with what is used by keystone. Also, make the workaround suggested in the openstack bug https://bugs.launchpad.net/oslo.policy/+bug/1547684
keystobe V3: make horizon identity policy file consistent with what is
used by keystone. Also, make the workaround suggested in the openstack bug
https://bugs.launchpad.net/oslo.policy/+bug/1547684

Change-Id: I20920887a63b84531ffb789877934aaa7099a3a8
Closes-Bug: #1612853
(cherry picked from commit 659fc9185e1114d58e6910cf5bb7cd2004315a12)

Juniper/contrail-provisioning,Juniper/contrail-provisioning