cli: ensure modem is enabled when performing actions

Don't rely on the lock status, as the modem may say it requires SIM PIN 2, but
we're allowed to run most operations even with that unlock required.

cli/mmcli-modem-time.c

@@ -108,8 +108,8 @@ context_free (Context *ctx)
 static void
 ensure_modem_time (void)
 {
-    if (mm_modem_get_unlock_required (mm_object_peek_modem (ctx->object)) != MM_MODEM_LOCK_NONE) {
-        g_printerr ("error: modem not unlocked yet\n");
+    if (mm_modem_get_state (mm_object_peek_modem (ctx->object)) < MM_MODEM_STATE_ENABLED) {
+        g_printerr ("error: modem not enabled yet\n");
         exit (EXIT_FAILURE);
     }