[copporch]: Fix copporch in DEL command (sonic-net#972)

The map m_syncdTrapIds maps trapid to trap_group object.
However in the implementation it was mapped to trap object.
Hence modified to map to trap_group object.

orchagent/copporch.cpp

@@ -210,7 +210,7 @@ bool CoppOrch::applyAttributesToTrapIds(sai_object_id_t trap_group_id,
             SWSS_LOG_ERROR("Failed to create trap %d, rv:%d", trap_id, status);
             return false;
         }
-        m_syncdTrapIds[trap_id] = hostif_trap_id;
+        m_syncdTrapIds[trap_id] = trap_group_id;
     }
 
     return true;