Add VMware storage backend to location strategy
Add VMware storage backend to location strategy

The store to scheme map used in the location strategy module
doesn't contain the VMware datastore backend.

Change-Id: I5d1faeb464dab79c300a525bab6e7e0ecb4ea489
Closes-Bug: #1275126

redhat-openstack/glance,takeshineshiro/glance,kfwang/Glance-OVA-OVF,rajalokan/glance,JioCloud/glance,paramite/glance,tanglei528/glance,scripnichenko/glance,vuntz/glance,klmitch/glance,takeshineshiro/glance,akash1808/glance,openstack/glance,rajalokan/glance,jumpstarter-io/glance,dims/glance,openstack/glance,stevelle/glance,redhat-openstack/glance,vuntz/glance,sigmavirus24/glance,tanglei528/glance,kfwang/Glance-OVA-OVF,klmitch/glance,ozamiatin/glance,paramite/glance,ozamiatin/glance,wkoathp/glance,scripnichenko/glance,wkoathp/glance,dims/glance,sigmavirus24/glance,stevelle/glance,saeki-masaki/glance,JioCloud/glance,openstack/glance,akash1808/glance,jumpstarter-io/glance,darren-wang/gl,saeki-masaki/glance,darren-wang/gl