Increase resources on gtw nodes for tempest

Change-Id: I1d8d803c34de7343a430d40881772aaf69c8e224
diff --git a/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml b/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml
index 509b6e8..fbbda4b 100644
--- a/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml
+++ b/tcp_tests/templates/cookied-mcp-ocata-dop-sl2/underlay.yaml
@@ -641,8 +641,8 @@
           - name: {{ HOSTNAME_GTW01 }}
             role: salt_minion
             params:
-              vcpu: {{ os_env('GTW_NODE_CPU', 1) }}
-              memory: {{ os_env('GTW_NODE_MEMORY', 2048) }}
+              vcpu: {{ os_env('GTW_NODE_CPU', 4) }}
+              memory: {{ os_env('GTW_NODE_MEMORY', 4096) }}
               boot:
                 - hd
               cloud_init_volume_name: iso