[Libvir] [PATCH] #6: Change xenUnifiedGetMaxVcpus to make direct calls to the underlying driver

Because the type field is now missing from xenUnifiedDriver, the old method of implementing xenUnifiedGetMaxVcpus didn't work. There's only one underlying driver which can implement this anyway, so just make the call directly. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903