VOL-1150 A single threaded implementation for the OpenOLT driver

Stats collection is driven from the main thread.

Change-Id: I773a4aeb0e840f2a36895e39b999b2dcaf2adaa6
diff --git a/src/indications.cc b/src/indications.cc
index adac6ad..4d7a393 100644
--- a/src/indications.cc
+++ b/src/indications.cc
@@ -48,10 +48,10 @@
     bcmbal_access_terminal_oper_status_change *acc_term_ind = (bcmbal_access_terminal_oper_status_change *)obj;
     if (acc_term_ind->data.new_oper_status == BCMBAL_STATUS_UP) {
         olt_ind->set_oper_state("up");
-        state::activate();
+        state.activate();
     } else {
         olt_ind->set_oper_state("down");
-        state::deactivate();
+        state.deactivate();
     }
     ind.set_allocated_olt_ind(olt_ind);
     std::cout << "olt indication, oper_state:" << ind.olt_ind().oper_state() << std::endl;