Changed Error log to Notice log during FDB flush notification after VLAN delete (sonic-net#1618)

Modified SWSS error log to Notice log during FDB flush notification after VLAN delete

Co-authored-by: Madhan Babu <[email protected]>

Author: madhanmellanox

orchagent/fdborch.cpp

@@ -184,7 +184,7 @@ void FdbOrch::update(sai_fdb_event_t        type,
 
         if (!m_portsOrch->getPort(entry->bv_id, vlan))
         {
-            SWSS_LOG_NOTICE("FdbOrch LEARN notification: Failed to locate vlan port from bv_id 0x%" PRIx64, entry->bv_id);
+            SWSS_LOG_ERROR("FdbOrch LEARN notification: Failed to locate vlan port from bv_id 0x%" PRIx64, entry->bv_id);
             return;
         }
 
@@ -357,7 +357,7 @@ void FdbOrch::update(sai_fdb_event_t        type,
 
             if (!m_portsOrch->getPort(entry->bv_id, vlan))
             {
-                SWSS_LOG_ERROR("FdbOrch notification: Failed to locate vlan\
+                SWSS_LOG_NOTICE("FdbOrch notification: Failed to locate vlan\
                                 port from bv_id 0x%" PRIx64, entry->bv_id);
                 return;
             }