test_neutron_resources slow tag to gate

The heat-slow jobs are not running anymore and it wore not really
slow, especially in parallel.

Changing test_neutron_resources test flags to gate.

Change-Id: Id94f2077d88675f7441dcc19dc4707e960ff15a7
diff --git a/tempest/api/orchestration/stacks/test_neutron_resources.py b/tempest/api/orchestration/stacks/test_neutron_resources.py
index 253d197..bed3f1b 100644
--- a/tempest/api/orchestration/stacks/test_neutron_resources.py
+++ b/tempest/api/orchestration/stacks/test_neutron_resources.py
@@ -96,7 +96,7 @@
         for resource in resources:
             cls.test_resources[resource['logical_resource_id']] = resource
 
-    @test.attr(type='slow')
+    @test.attr(type='gate')
     @test.idempotent_id('f9e2664c-bc44-4eef-98b6-495e4f9d74b3')
     def test_created_resources(self):
         """Verifies created neutron resources."""
@@ -115,7 +115,7 @@
             self.assertEqual(resource_type, resource['resource_type'])
             self.assertEqual('CREATE_COMPLETE', resource['resource_status'])
 
-    @test.attr(type='slow')
+    @test.attr(type='gate')
     @test.idempotent_id('c572b915-edb1-4e90-b196-c7199a6848c0')
     @test.services('network')
     def test_created_network(self):
@@ -128,7 +128,7 @@
         self.assertEqual(self.neutron_basic_template['resources'][
             'Network']['properties']['name'], network['name'])
 
-    @test.attr(type='slow')
+    @test.attr(type='gate')
     @test.idempotent_id('e8f84b96-f9d7-4684-ad5f-340203e9f2c2')
     @test.services('network')
     def test_created_subnet(self):
@@ -147,7 +147,7 @@
             'Subnet']['properties']['ip_version'], subnet['ip_version'])
         self.assertEqual(str(self.subnet_cidr), subnet['cidr'])
 
-    @test.attr(type='slow')
+    @test.attr(type='gate')
     @test.idempotent_id('96af4c7f-5069-44bc-bdcf-c0390f8a67d1')
     @test.services('network')
     def test_created_router(self):
@@ -161,7 +161,7 @@
                          router['external_gateway_info']['network_id'])
         self.assertEqual(True, router['admin_state_up'])
 
-    @test.attr(type='slow')
+    @test.attr(type='gate')
     @test.idempotent_id('89f605bd-153e-43ee-a0ed-9919b63423c5')
     @test.services('network')
     def test_created_router_interface(self):
@@ -185,7 +185,7 @@
         self.assertEqual(str(self.subnet_cidr.iter_hosts().next()),
                          router_interface_ip)
 
-    @test.attr(type='slow')
+    @test.attr(type='gate')
     @test.idempotent_id('75d85316-4ac2-4c0e-a1a9-edd2148fc10e')
     @test.services('compute', 'network')
     def test_created_server(self):