This is not a final fix. The final fix SHOULD send a "guest-sync"
request as per"
http://wiki.qemu.org/Features/QAPI/GuestAgent#QEMU_Guest_Agent_Protocol
However, this temporary fix will eliminate the nested VM startup
failures triggered by the nested VM's guest-agent receiving a partial
guest-ping request.
Change-Id: Ice409b7c966a527b03cb71c042b476e1771676d0
Signed-off-by: Carsten Koester <ckoester@cisco.com>