[Mux orch] set default as standby, change mux orch priority (#2010)

*Set default status for each mux port to standby state during init.
*Change mux orch priority to process entries before neighbor orch

Author: prsunny

orchagent/muxorch.cpp

@@ -326,6 +326,9 @@ MuxCable::MuxCable(string name, IpPrefix& srv_ip4, IpPrefix& srv_ip6, IpAddress
     state_machine_handlers_.insert(handler_pair(MUX_STATE_STANDBY_ACTIVE, &MuxCable::stateActive));
     state_machine_handlers_.insert(handler_pair(MUX_STATE_INIT_STANDBY, &MuxCable::stateStandby));
     state_machine_handlers_.insert(handler_pair(MUX_STATE_ACTIVE_STANDBY, &MuxCable::stateStandby));
+
+    /* Set initial state to "standby" */
+    stateStandby();
 }
 
 bool MuxCable::stateInitActive()

orchagent/orchdaemon.cpp

@@ -298,7 +298,7 @@ bool OrchDaemon::init()
      * when iterating ConsumerMap. This is ensured implicitly by the order of keys in ordered map.
      * For cases when Orch has to process tables in specific order, like PortsOrch during warm start, it has to override Orch::doTask()
      */
-    m_orchList = { gSwitchOrch, gCrmOrch, gPortsOrch, gBufferOrch, gIntfsOrch, gNeighOrch, gNhgOrch, gRouteOrch, copp_orch, qos_orch, wm_orch, policer_orch, tunnel_decap_orch, sflow_orch, debug_counter_orch, gMacsecOrch};
+    m_orchList = { gSwitchOrch, gCrmOrch, gPortsOrch, gBufferOrch, mux_orch, mux_cb_orch, gIntfsOrch, gNeighOrch, gNhgOrch, gRouteOrch, copp_orch, qos_orch, wm_orch, policer_orch, tunnel_decap_orch, sflow_orch, debug_counter_orch, gMacsecOrch};
 
     bool initialize_dtel = false;
     if (platform == BFN_PLATFORM_SUBSTRING || platform == VS_PLATFORM_SUBSTRING)
@@ -394,8 +394,6 @@ bool OrchDaemon::init()
     m_orchList.push_back(gMlagOrch);
     m_orchList.push_back(gIsoGrpOrch);
     m_orchList.push_back(gFgNhgOrch);
-    m_orchList.push_back(mux_orch);
-    m_orchList.push_back(mux_cb_orch);
     m_orchList.push_back(mux_st_orch);
 
     if (m_fabricEnabled)