Revert "[PTF python3 migration] Modify test_advanced_reboot PTF script"

[saiarcot895]

Reverts #9550, fe0d44d

This is causing a breakage when running on physical testbeds, due to (at least) the following error:

Exception in thread Thread-7:
Traceback (most recent call last):
  File \"/usr/lib/python3.7/threading.py\", line 917, in _bootstrap_inner
    self.run()
  File \"/usr/lib/python3.7/threading.py\", line 865, in run
    self._target(*self._args, **self._kwargs)
  File \"ptftests/py3/advanced-reboot.py\", line 1664, in send_in_background
    'not (arp and ether src {}) and not tcp'.format(self.test_params['dut_mac']))
  File \"ptftests/py3/advanced-reboot.py\", line 1648, in apply_filter_all_ports
    scapyall.attach_filter(port.socket, filter_expression)
AttributeError: module 'scapy.all' has no attribute 'attach_filter'