Fix drivetrain tests (node targetting)

Change-Id: Ic2b97549ea039cbccef801c079ad2f2748896d78
diff --git a/cvp_checks/tests/test_drivetrain.py b/cvp_checks/tests/test_drivetrain.py
index 9274312..70b61ec 100644
--- a/cvp_checks/tests/test_drivetrain.py
+++ b/cvp_checks/tests/test_drivetrain.py
@@ -7,7 +7,7 @@
 
 def test_drivetrain_services_replicas(local_salt_client):
     salt_output = local_salt_client.cmd(
-        'I@docker:host and not I@prometheus:server and not I@kubernetes:*',
+        'I@gerrit:client',
         'cmd.run',
         ['docker service ls'],
         expr_form='compound')
@@ -27,7 +27,7 @@
     if not version or version == '':
         pytest.skip("drivetrain_version is not defined. Skipping")
     salt_output = local_salt_client.cmd(
-        'I@docker:host and not I@prometheus:server and not I@kubernetes:*',
+        'I@gerrit:client',
         'cmd.run',
         ['docker service ls'],
         expr_form='compound')