[Libvirt-cim] [PATCH 0 of 2] Fix VSMC enumeration failure.

wbemcli ein http://root:elm3b41@localhost/root/virt:Xen_VirtualSystemManagementCapabilit... This currently returns: "Missing key: Name". This is because get_vsm_cap() is expecting a Name attribute in the ref, which doesn't exist on an enumeration query. This patch set fixes the enum issue in VSMC. Part of this fix is to add a new parameter to get_vsm_cap(). One of the handlers in ElementCapabilities calls get_vsm_cap(), so that function call has been updated as well.