[libvirt] [PATCH]: Fix qemu+tls negotiation

All, While doing testing on the migration stuff, I noticed that a connection string using tls (in my case, qemu+tls://host/system) was hanging up trying to connect. I traced this down to a bug in the newer qemud negotiation implementation. What is happening is that we are forgetting to clear client->handshake to 0 after successfully doing a remoteAccessCheck(); this means we were never putting the '\1' byte on the transmit queue to be sent to the client, so the client was essentially waiting forever for the server to respond. Fix this by clearing the handshake once we've successfully done the handshake. Signed-off-by: Chris Lalancette <clalance(a)redhat.com&gt;