Merge pull request #67641 from mborsz/preparenodes

Automatic merge from submit-queue (batch tested with PRs 66229, 67682, 67585, 67641, 67697). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Fix validation logic in E2ETestNodePreparer.

**What this PR does / why we need it**:
There is a bug in E2ETestNodePreparer validation logic.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

test/e2e/framework/util.go

@@ -4876,8 +4876,8 @@ func NewE2ETestNodePreparer(client clientset.Interface, countToStrategy []testut
 func (p *E2ETestNodePreparer) PrepareNodes() error {
 	nodes := GetReadySchedulableNodesOrDie(p.client)
 	numTemplates := 0
-	for k := range p.countToStrategy {
-		numTemplates += k
+	for _, v := range p.countToStrategy {
+		numTemplates += v.Count
 	}
 	if numTemplates > len(nodes.Items) {
 		return fmt.Errorf("Can't prepare Nodes. Got more templates than existing Nodes.")