Add missing flex counter op str to consumer_table_pops.lua

without it the system failed when "synchronous_mode": "disable"

Fixed Problems/New Changes:

Should be Tested:

common/consumer_table_pops.lua

@@ -90,7 +90,12 @@ for i = n, 1, -3 do
        op == 'object_type_get_availability_query' or
        op == 'object_type_get_availability_response' or
        op == 'stats_capability_query' or
-       op == 'stats_capability_response' then
+       op == 'stats_capability_response' or
+       op == 'start_poll' or
+       op == 'stop_poll' or
+       op == 'set_counter_group' or
+       op == 'del_counter_group' or
+       op == 'counter_response'then
 
     -- do not modify db entries when spotted those commands, they are used to
     -- trigger actions or get data synchronously from database