[SmartSwitch-HA] Set pending flags back to false. (#3997)

What I did
Set flow_reconcile_pending, activate_role_pending, and brainsplit_recover_pending back to false after receiving the appropriate notification. For flow_reconcile_pending and activate_role_pending, this is after controller sends operation approval. For brainsplit, clearing the flag after DPU enters stable state again.

Why I did it
flow_reconcile_pending, activate_role_pending, and brainsplit_recover_pending were not being reset to false after being set true for the first time.

Author: dypet

orchagent/dash/dashhaorch.cpp

@@ -651,6 +651,9 @@ bool DashHaOrch::setHaScopeFlowReconcileRequest(const std::string &key)
     }
     SWSS_LOG_NOTICE("Set HA Scope flow reconcile request for %s", key.c_str());
 
+    std::vector<FieldValueTuple> fvs = {{"flow_reconcile_pending", "false"}};
+    m_dpuStateDbHaScopeTable->set(key, fvs);
+
     return true;
 }
 
@@ -678,6 +681,9 @@ bool DashHaOrch::setHaScopeActivateRoleRequest(const std::string &key)
     }
     SWSS_LOG_NOTICE("Set HA Scope activate role request for %s", key.c_str());
 
+    std::vector<FieldValueTuple> fvs = {{"activate_role_pending", "false"}};
+    m_dpuStateDbHaScopeTable->set(key, fvs);
+
     return true;
 }
 
@@ -1026,6 +1032,11 @@ void DashHaOrch::doTask(NotificationConsumer &consumer)
                             fvs.push_back({"activate_role_pending", "true"});
                             SWSS_LOG_NOTICE("DPU is pending on role activation for %s", key.c_str());
                         }
+                        else if (in(ha_scope_event[i].ha_state, {SAI_DASH_HA_STATE_ACTIVE,
+                                                                 SAI_DASH_HA_STATE_STANDBY}))
+                        {
+                            fvs.push_back({"brainsplit_recover_pending", "false"});
+                        }
 
                         fvs.push_back({"ha_state", sai_ha_state_name.at(ha_scope_event[i].ha_state)});
                         fvs.push_back({"ha_state_start_time", to_string(now_time)});