tests/test_bootup: move syslog_ng check

This tests commonly fails because syslog-ng takes its time to create the
/var/log/messages file even when it is already running. Moving it does
not ensure that it is run later on but at least that is what happens
right now.

tests/test_bootup.py

@@ -12,12 +12,6 @@ from nsfarm.toolbox import service_is_running
 from . import mark
 
 
-@pytest.mark.deploy
-def test_syslog_ng(client_board):
-    """Check that syslog-ng is running by checking if there is /var/log/messages (default log output)."""
-    client_board.run("[ -f /var/log/messages ]")
-
-
 @pytest.mark.deploy
 @pytest.mark.parametrize(
     "process",
@@ -105,6 +99,13 @@ def test_services(client_board, service):
     client_board.run(f"/etc/init.d/{service} enabled")
 
 
+@pytest.mark.deploy
+def test_syslog_ng(client_board):
+    """Check that syslog-ng is running by checking if there is /var/log/messages (default log output)."""
+    client_board.run("ls /var/log")
+    client_board.run("[ -f /var/log/messages ]")
+
+
 @pytest.mark.deploy
 def test_lighttpd(lan1_client):
     """Test that there is access to router interface."""