kubevirt / hyperconverged-cluster-operator / 12457167065

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[release-1.13] Handle kubevirt control plane NodePlacement on hypershift clusters (#3227)

* Handle kubevirt control plane NodePlacement on hypershift clusters

Since kubevirt v1.3, the kubevirt control plane components (e.g. virt-controller and virt-api) are getting schdeuled by default on the control-plane/master
nodes, not regular worker nodes.
In hypershift (Hosted Control Planes) clusters, there are no control plane nodes at all (the control plane is hosted as pods on the management cluster).
Therefore, in case there are no control plane nodes, we're setting the kubevirt's node placement as an empty struct to avoid any predefined scheduling/affinity rules
that might prevent the pods to be scheduled on the cluster.

Signed-off-by: Oren Cohen <ocohen@redhat.com>

* Minor fixes for #3219

1. fix comment (should be masters instead of workers)
2. use HaveValue matcher in unit tests.

Signed-off-by: Oren Cohen <ocohen@redhat.com>

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Signed-off-by: Oren Cohen <ocohen@redhat.com>
Co-authored-by: Oren Cohen <ocohen@redhat.com>

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