Use static uplink vlans (configurable) if the device is not found in the uplink map for the subscriber.
Plus other misc. changes related to voltha config

Change-Id: Icf2548af82229e984f16005950a34a73bdcd9cbc
diff --git a/src/test/utils/CordTestConfig.py b/src/test/utils/CordTestConfig.py
index f41d0da..f17fcf8 100644
--- a/src/test/utils/CordTestConfig.py
+++ b/src/test/utils/CordTestConfig.py
@@ -80,7 +80,8 @@
                         config_fake = False,
                         olt_type = 'ponsim_olt',
                         olt_mac = '00:0c:e2:31:12:00',
-                        uplink_vlan_map = { 'of:0000000000000001' : '222' }
+                        uplink_vlan_map = { 'of:0000000000000001' : '222' },
+                        uplink_vlan_start = 333
                         )
     voltha_enabled = bool(int(os.getenv('VOLTHA_ENABLED', 0)))
     voltha_configure = True