BGP unit test 'auth-type' errors
BGP unit test 'auth-type' errors

'auth-type' in position_names is wrong, and it should be modified
to 'auth_type' for bgp peer.

Change-Id: I54a7ab54500c8d3655212e81046becee241a8c18

openstack/python-neutronclient,noironetworks/python-neutronclient,huntxu/python-neutronclient,openstack/python-neutronclient,noironetworks/python-neutronclient,huntxu/python-neutronclient