test(e2e): expect SCEP on the status Protocols line

The status Protocols line lists SCEP since SCEP support landed, so after
the reboots it reads "ACME on, EST on, SCEP off" and "ACME off, EST on,
SCEP off". The protocol switch step matched the line up to its newline
without SCEP and failed although the switch itself worked.

Signed-off-by: Bugs5382 <12115015+Bugs5382@users.noreply.github.com>

Author: Bugs5382

test/integration/image_suite_test.go

@@ -1168,7 +1168,7 @@ func stepProtocolsOn(t *testing.T, s *suite, st *suiteState) {
 	}
 	st.inter.reboot(t, suiteIntCN)
 	status = st.inter.status(t)
-	if !strings.Contains(status, "Protocols:       ACME on, EST on\n") || strings.Contains(status, "Reboot:") {
+	if !strings.Contains(status, "Protocols:       ACME on, EST on, SCEP off\n") || strings.Contains(status, "Reboot:") {
 		t.Fatalf("after the reboot, want ACME and EST running and no pending reboot:\n%s", status)
 	}
 	resp, err := (&http.Client{Timeout: 10 * time.Second}).Get("http://127.0.0.1:" + intACMEPort + "/acme/directory")
@@ -1193,7 +1193,7 @@ func stepProtocolsOff(t *testing.T, s *suite, st *suiteState) {
 	}
 	st.inter.reboot(t, suiteIntCN)
 	status = st.inter.status(t)
-	if !strings.Contains(status, "Protocols:       ACME off, EST on\n") || strings.Contains(status, "Reboot:") {
+	if !strings.Contains(status, "Protocols:       ACME off, EST on, SCEP off\n") || strings.Contains(status, "Reboot:") {
 		t.Fatalf("after the reboot, want ACME off, EST on and nothing pending:\n%s", status)
 	}
 	if c, err := net.DialTimeout("tcp", "127.0.0.1:"+intACMEPort, 3*time.Second); err == nil {