Arc VMs & DNS servers issue

**Bug description**
The DNS servers that are configured do not show inside the VM, but DNS works.

**Repro steps**
Steps to reproduce the behavior:
1. Deploy a VM through the portal and define DNS servers
2. Login to the VM and look at the DNS servers
3. See that the fields are empty

**Expected behavior**
See 4th screenshot

**Screenshots**


They do show in advanced view, but they are never on the same line in the UI, but with these VMs they are:

What it should look like:

We’ve tested on different customer / HCI environments.

按照 issue 中的步骤，使用 DNS 服务器复现 portal 部署，然后将 VM 的标准 DNS 视图和高级 DNS 视图与屏幕截图 1–4 进行比较。配置的 DNS 服务器能够在 VM 内的预期视图中显示，并且在经过测试的客户环境和 HCI 环境中保持正常运行，即视为完成。

由索引模型根据 Issue 内容生成。