[conflict resolve]test_snmp_queue_counters.py/test_telemetry.py config_reload and snmpwwalk output time delay fix, test_snmp_queue_counters.py multi-asic KeyError fix

[conflict resolve]test_snmp_queue_counters.py/test_telemetry.py config_reload and snmpwwalk output time delay fix, test_snmp_queue_counters.py multi-asic KeyError fix #3116