Remove mox in tests/unit/objects/test_instance_faults
Remove mox in tests/unit/objects/test_instance_faults

This patch replaces mox with mock in
tests/unit/objects/test_instance_faults

Part of blueprint remove-mox-newton

Change-Id: Icc047ae9861ea5bd0bef3888644779244165031a

mikalstill/nova,klmitch/nova,jianghuaw/nova,rajalokan/nova,mahak/nova,mikalstill/nova,cloudbase/nova,jianghuaw/nova,vmturbo/nova,rajalokan/nova,rahulunair/nova,vmturbo/nova,hanlind/nova,rahulunair/nova,gooddata/openstack-nova,klmitch/nova,jianghuaw/nova,gooddata/openstack-nova,openstack/nova,hanlind/nova,openstack/nova,gooddata/openstack-nova,jianghuaw/nova,Juniper/nova,sebrandon1/nova,alaski/nova,rajalokan/nova,hanlind/nova,sebrandon1/nova,klmitch/nova,Juniper/nova,rahulunair/nova,openstack/nova,vmturbo/nova,phenoxim/nova,rajalokan/nova,cloudbase/nova,cloudbase/nova,mahak/nova,klmitch/nova,phenoxim/nova,alaski/nova,sebrandon1/nova,gooddata/openstack-nova,vmturbo/nova,mahak/nova,Juniper/nova,Juniper/nova,mikalstill/nova