Excluding bagpipe-bgp submodule from pep8 tests
Excluding bagpipe-bgp submodule from pep8 tests

Change-Id: Ia62813bc2ec41787a7edc344c0a5f60c29cdce17

openstack/networking-bagpipe,openstack/networking-bagpipe-l2,stackforge/networking-bagpipe-l2,openstack/networking-bagpipe,stackforge/networking-bagpipe-l2,openstack/networking-bagpipe-l2