cannot open vnc console

[jijisa]

Describe the bug
I cannot connect to VM vnc console.

Versions (please complete the following information):

• OS: No matter
• Burrito 2.0.0 - 2.1.1

[jijisa]

It is a regression bug which is caused by openstack-helm chart upgrade in
Begonia branch.

I fixed the nova vnc console configuration and
make the novnc and vnc listen on management interface.

The commit 9398fa2 solved this issue.