UPSTREAM: 62827: fix csi data race in csi_attacher_test.go

[gnufied]

xref : #19465

Fixes following error reported from linked PR:

=== RUN   TestAttacherAttach
panic: test timed out after 2m0s

goroutine 8 [running]:
testing.startAlarm.func1()
	/usr/local/go/src/testing/testing.go:1145 +0x139
created by time.goFunc
	/usr/local/go/src/time/sleep.go:170 +0x52

goroutine 1 [chan receive, 2 minutes]:
testing.(*T).Run(0xc42017e0f0, 0x1cf5e2d, 0x12, 0x1d70300, 0xc42050fbe8)
	/usr/local/go/src/testing/testing.go:790 +0x59b
testing.runTests.func1(0xc42017e0f0)
	/usr/local/go/src/testing/testing.go:1004 +0xa8
testing.tRunner(0xc42017e0f0, 0xc42050fd28)
	/usr/local/go/src/testing/testing.go:746 +0x16d
testing.runTests(0xc420168a00, 0x28642e0, 0x17, 0x17, 0xc4200e66c8)
	/usr/local/go/src/testing/testing.go:1002 +0x522
testing.(*M).Run(0xc4203adf20, 0x30)
	/usr/local/go/src/testing/testing.go:921 +0x207
main.main()
	github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/volume/csi/_test/_testmain.go:142 +0x2f1

goroutine 19 [chan receive, 2 minutes]:
github.com/openshift/origin/vendor/github.com/golang/glog.(*loggingT).flushDaemon(0x286fe60)
	/go/src/github.com/openshift/origin/_output/local/go/src/github.com/openshift/origin/vendor/github.com/golang/glog/glog.go:879 +0xc3
created by github.com/openshift/origin/vendor/github.com/golang/glog.init.0
	/go/src/github.com/openshift/origin/_output/local/go/src/github.com/openshift/origin/vendor/github.com/golang/glog/glog.go:410 +0x23b

goroutine 36 [chan send, 2 minutes]:
github.com/openshift/origin/vendor/k8s.io/apimachinery/pkg/watch.(*FakeWatcher).Modify(...)
	/go/src/github.com/openshift/origin/_output/local/go/src/github.com/openshift/origin/vendor/k8s.io/apimachinery/pkg/watch/watch.go:140
github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/volume/csi.TestAttacherAttach(0xc42017e1e0)
	/go/src/github.com/openshift/origin/_output/local/go/src/github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/volume/csi/csi_attacher_test.go:162 +0x61f
testing.tRunner(0xc42017e1e0, 0x1d70300)
	/usr/local/go/src/testing/testing.go:746 +0x16d
created by testing.(*T).Run
	/usr/local/go/src/testing/testing.go:789 +0x569
FAIL	github.com/openshift/origin/vendor/k8s.io/kubernetes/pkg/volume/csi	120.096s

/sig storage

cc @childsb @jsafrane

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gnufied

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• vendor/k8s.io/kubernetes/pkg/volume/csi/OWNERS [gnufied]

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[jsafrane]

/lgtm

[gnufied]

/retest

[jsafrane]

/retest