Do not run docker specific test under other CRIs

```
100630:I0211 13:12:32.952106       1 admission.go:148] unable to validate pod apparmor (generate: ) in namespace podsecuritypolicy-3080 against any pod security policy: [pod.metadata.annotations[container.apparmor.security.beta.kubernetes.io/pause]: Forbidden: localhost/docker-default is not an allowed profile. Allowed values: "runtime/default"]
```

test/e2e/auth/pod_security_policy.go

@@ -168,7 +168,7 @@ func testPrivilegedPods(tester func(pod *v1.Pod)) {
 		tester(hostipc)
 	})
 
-	if isAppArmorSupported() {
+	if isAppArmorSupported() && framework.TestContext.ContainerRuntime == "docker" {
 		ginkgo.By("Running a custom AppArmor profile pod", func() {
 			aa := restrictedPod("apparmor")
 			// Every node is expected to have the docker-default profile.