Flip the default igmp app to multitable.
Change igmp test accordingly.
Avoid restarting ONOS by toggling the onos core driver/openflow apps.
Avoid configuring the igmp SSM table and port table config used only with the deprecated ciena-cordigmp (non-multi-table) app

Change-Id: Ifa7e1dbec61a4d768885c30fd36f6024798fe754
diff --git a/src/test/utils/Channels.py b/src/test/utils/Channels.py
index 80a086e..b9363f9 100644
--- a/src/test/utils/Channels.py
+++ b/src/test/utils/Channels.py
@@ -90,6 +90,7 @@
         time.sleep(2)
 
     def ssm_table_load(self, groups):
+          return
           ssm_dict = {'apps' : { 'org.opencord.igmp' : { 'ssmTranslate' : [] } } }
           ssm_xlate_list = ssm_dict['apps']['org.opencord.igmp']['ssmTranslate']
           for g in groups:
@@ -101,6 +102,7 @@
           self.onos_load_config(ssm_dict)
 
     def cord_port_table_load(self, cord_port_map):
+          return
           cord_group_dict = {'apps' : { 'org.ciena.cordigmp' : { 'cordIgmpTranslate' : [] } } }
           cord_group_xlate_list = cord_group_dict['apps']['org.ciena.cordigmp']['cordIgmpTranslate']
           for group, ports in cord_port_map.items():