Set internal vip to vagrant private network

In vagrant environments, the kolla_internal_vip_address didn't belong
to the private network provisioned on the machine and was failing the
prechecks.

TrivialFix

Change-Id: I0e7e4d134e350c49ef7510c7262677754a83bcbf

dev/vagrant/bootstrap.sh

@@ -154,6 +154,8 @@ function configure_kolla {
     # Set network interfaces
     sed -i -r "s,^[# ]*network_interface:.+$,network_interface: \"eth1\"," /etc/kolla/globals.yml
     sed -i -r "s,^[# ]*neutron_external_interface:.+$,neutron_external_interface: \"eth2\"," /etc/kolla/globals.yml
+    # Set VIP address to be on the vagrant private network
+    sed -i -r "s,^[# ]*kolla_internal_vip_address:.+$,kolla_internal_vip_address: \"172.28.128.254\"," /etc/kolla/globals.yml
 }
 
 # Configure the operator node and install some additional packages.

doc/vagrant-dev-env.rst

@@ -141,7 +141,7 @@ Validate OpenStack is operational::
     source /etc/kolla/admin-openrc.sh
     openstack user list
 
-Or navigate to http://10.10.10.254/ with a web browser.
+Or navigate to http://172.28.128.254/ with a web browser.
 
 Further Reading
 ===============