Wait for the UDN namespaces to have SA's created

Should fix:

pods "red-pod-0" is forbidden: error looking up service account e2e-network-segmentation-e2e-6878-red/default: serviceaccount "default" not found
    {
        ErrStatus:
            code: 403
            details:
              kind: pods
              name: red-pod-0
            message: 'pods "red-pod-0" is forbidden: error looking up service account e2e-network-segmentation-e2e-6878-red/default:
              serviceaccount "default" not found'
            metadata: {}
            reason: Forbidden
            status: Failure,

Signed-off-by: Surya Seetharaman <[email protected]>

test/extended/networking/network_segmentation.go

@@ -508,6 +508,8 @@ var _ = Describe("[sig-network][OCPFeatureGate:NetworkSegmentation][Feature:User
 								},
 							}, metav1.CreateOptions{})
 							Expect(err).NotTo(HaveOccurred())
+							err = udnWaitForOpenShift(oc, namespace)
+							Expect(err).NotTo(HaveOccurred())
 							defer func() {
 								By("Removing namespace " + namespace)
 								Expect(cs.CoreV1().Namespaces().Delete(
@@ -859,6 +861,8 @@ var _ = Describe("[sig-network][OCPFeatureGate:NetworkSegmentation][Feature:User
 							Labels: map[string]string{RequiredUDNNamespaceLabel: ""},
 						}}, metav1.CreateOptions{})
 					Expect(err).NotTo(HaveOccurred())
+					err = udnWaitForOpenShift(oc, nsName)
+					Expect(err).NotTo(HaveOccurred())
 					DeferCleanup(func() error {
 						err := cs.CoreV1().Namespaces().Delete(context.Background(), nsName, metav1.DeleteOptions{})
 						return err
@@ -944,6 +948,8 @@ var _ = Describe("[sig-network][OCPFeatureGate:NetworkSegmentation][Feature:User
 						Labels: map[string]string{RequiredUDNNamespaceLabel: ""},
 					}}, metav1.CreateOptions{})
 				Expect(err).NotTo(HaveOccurred())
+				err = udnWaitForOpenShift(oc, testNewNs)
+				Expect(err).NotTo(HaveOccurred())
 				DeferCleanup(func() error {
 					err := cs.CoreV1().Namespaces().Delete(context.Background(), testNewNs, metav1.DeleteOptions{})
 					return err
@@ -973,6 +979,8 @@ var _ = Describe("[sig-network][OCPFeatureGate:NetworkSegmentation][Feature:User
 							Labels: map[string]string{RequiredUDNNamespaceLabel: ""},
 						}}, metav1.CreateOptions{})
 					Expect(err).NotTo(HaveOccurred())
+					err = udnWaitForOpenShift(oc, testNewNs)
+					Expect(err).NotTo(HaveOccurred())
 					DeferCleanup(func() error {
 						err := cs.CoreV1().Namespaces().Delete(context.Background(), testNewNs, metav1.DeleteOptions{})
 						return err
@@ -1107,6 +1115,8 @@ var _ = Describe("[sig-network][OCPFeatureGate:NetworkSegmentation][Feature:User
 						Labels: map[string]string{RequiredUDNNamespaceLabel: ""},
 					}}, metav1.CreateOptions{})
 				Expect(err).NotTo(HaveOccurred())
+				err = udnWaitForOpenShift(oc, nsName)
+				Expect(err).NotTo(HaveOccurred())
 				DeferCleanup(func() error {
 					err := cs.CoreV1().Namespaces().Delete(context.Background(), nsName, metav1.DeleteOptions{})
 					return err