change Vagrantfile config for port forwarding
change Vagrantfile config for port forwarding

Signed-off-by: Peng Xiao <dc8b7d6a85c199a18f82ef7727e6dbbbae446be2@gmail.com>

smartbgp/yabgp,smartbgp/yabgp,meidli/yabgp,meidli/yabgp