[ci] Make rally-keystone-api-v2.yaml link to rally.yaml
[ci] Make rally-keystone-api-v2.yaml link to rally.yaml

Change-Id: I28b6b79a8580c091c6b3dd8e85a15400205917ad

yeming233/rally,openstack/rally,openstack/rally,openstack/rally,openstack/rally,yeming233/rally