Add message which shows how much CPU used

"validates resource limits of pods that are allowed to run" test of
conformance tests are flake on some local environments.
The CPU workload pods don't seem work well and nodes have still CPU
capacity after running the workload pods. Then the conformance test
failed unexpectedly.
This adds message which shows how much CPU used by the workload pods
for investigating it easily.

test/e2e/scheduling/predicates.go

@@ -282,6 +282,7 @@ var _ = SIGDescribe("SchedulerPredicates [Serial]", func() {
 		fillerPods := []*v1.Pod{}
 		for nodeName, cpu := range nodeToAllocatableMap {
 			requestedCPU := cpu * 7 / 10
+			e2elog.Logf("Creating a pod which consumes cpu=%vm on Node %v", requestedCPU, nodeName)
 			fillerPods = append(fillerPods, createPausePod(f, pausePodConfig{
 				Name: "filler-pod-" + string(uuid.NewUUID()),
 				Resources: &v1.ResourceRequirements{