prop_field_types to be changed to dict
prop_field_types to be changed to dict

prop_field_types will be changed to a dict. Change the usage accordingly.
Partial-Bug: 1561253

Change-Id: I13922652d1fd92b5f594a4e48729b3d2984d3c77

tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller