Adjust vhost socket dir

[dann1]

Description
After discussing the automation for selinux permissions required when using DPDK, we decided changing the vhost directory from /var/lib/one/vhost-socket to /var/run/one/vhost-socks/ would be a better choice.

Use case

• Avoid issues with home dirs which /var/lib/one/ is
• Placement consistency with other opennebula related sockets

Progress Status

• Code committed
• Testing - QA
• Documentation (Release notes - resolved issues, compatibility, known issues)