Move status command to TestFunctional/serial

I noticed that TestComponentHealth/parallel/ComponentHealth was failing with this error:

```
Error apiserver status: https://172.17.0.3:8441/healthz returned error 500:
[-]etcd failed: reason withheld
```

but by the time post mortem logs were printed the etcd container was up and running.

I think this test occasionally fails because apiserver healthz is not yet returning a 200 status when we run the test. We wait for healthz to return 200 on regular start, but not on soft start, which we run in `TestFunctional`.

`minikube status` runs the apiserver healthz check, so moving this command to the serial part of the test should ensure that `TestComponentHealth` will run with a healthy apiserver.

test/integration/functional_test.go

@@ -83,9 +83,10 @@ func TestFunctional(t *testing.T) {
 			{"StartWithProxy", validateStartWithProxy},      // Set everything else up for success
 			{"SoftStart", validateSoftStart},                // do a soft start. ensure config didnt change.
 			{"KubeContext", validateKubeContext},            // Racy: must come immediately after "minikube start"
-			{"KubectlGetPods", validateKubectlGetPods},      // Make sure kubectl is returning pods
+			{"KubectlGetPods", validateKubectlGetPods},      // Make sure apiserver is up
 			{"CacheCmd", validateCacheCmd},                  // Caches images needed for subsequent tests because of proxy
 			{"MinikubeKubectlCmd", validateMinikubeKubectl}, // Make sure `minikube kubectl` works
+			{"StatusCmd", validateStatusCmd},                // ensure apiserver is running and healthz check passes, so that we can test validateComponentHealth
 		}
 		for _, tc := range tests {
 			tc := tc
@@ -109,7 +110,6 @@ func TestFunctional(t *testing.T) {
 			{"DashboardCmd", validateDashboardCmd},
 			{"DNS", validateDNS},
 			{"DryRun", validateDryRun},
-			{"StatusCmd", validateStatusCmd},
 			{"LogsCmd", validateLogsCmd},
 			{"MountCmd", validateMountCmd},
 			{"ProfileCmd", validateProfileCmd},
@@ -229,7 +229,7 @@ func validateSoftStart(ctx context.Context, t *testing.T, profile string) {
 		t.Errorf("expected cluster config node port before soft start to be %d but got %d", apiPortTest, beforeCfg.Config.KubernetesConfig.NodePort)
 	}
 
-	softStartArgs := []string{"start", "-p", profile, "--wait=all"}
+	softStartArgs := []string{"start", "-p", profile}
 	c := exec.CommandContext(ctx, Target(), softStartArgs...)
 	rr, err := Run(t, c)
 	if err != nil {