Add disable-vmi-controller option and fix 4459

[chrisho]

Problem:
harvester/harvester#4459
harvester/harvester#4432

Solution:

• Add a disable-vmi-controller option to stop the node topology sync.
  • Use the cloud provider package's parameter additionalFlags to add the --disable-vmi-controller option.
  • The defect is after performing cloud-provider --help, it doesn't show the --disable-vmi-controller option.
• Fix the logic for getting node.
  • Get the guest node through the VMI name.
  • Return nil if not found, no more errors returns.

Related Issue:
harvester/harvester#4459
harvester/harvester#4432

Test plan:

1. Set topology.kubernetes.io/zone label for each harvester node. The value must be different.
2. Provide two guest clusters of rke2 in the same namespaces.
3. Check the cloud provider container log of the guest cluster. There are "not found" errors.
4. Edit the cloud provider deployment configuration and add the option --disable-vmi-controller=true to the arguments.
5. Check the cloud provider container log of the guest cluster. There is no "not found" error.

[w13915984028]

LGTM, thanks.

[starbops]

LGTM, thank you.