Description of problem:
Since implementation of uplink_status_propgation, default behavior changed for VF link propgation from auto to disabled

So basically, before we were not setting the propagate_uplink_state and now we are:
~~~
def set_device_state(self, pci_slot, state):
        """Set device state.

        @param pci_slot: Virtual Function address
        @param state: link state
        """
        vf_index = self._get_vf_index(pci_slot)
        return self.pci_dev_wrapper.set_vf_state(vf_index, state)

~~~
to
~~~
def set_device_state(self, pci_slot, state, propagate_uplink_state):
        """Set device state.

        @param pci_slot: Virtual Function address
        @param state: link state
        """
        vf_index = self._get_vf_index(pci_slot)
        return self.pci_dev_wrapper.set_vf_state(vf_index, state,
                                                 auto=propagate_uplink_state)

~~~

And set_vf_state went from:
~~~
    def set_vf_state(self, vf_index, state):
        """sets vf state.

        @param vf_index: vf index
        @param state: required state {True/False}
        """
        status_str = self.LinkState.ENABLE if state else \
            self.LinkState.DISABLE
        self._set_feature(vf_index, "state", status_str)
~~~

to:
~~~
    def set_vf_state(self, vf_index, state, auto=False):
        """sets vf state.

        @param vf_index: vf index
        @param state: required state {True: enable (1)
                                      False: disable (2)}
        @param auto: set link_state to auto (0)
        """
        ip = self.device(self.dev_name)
        if auto:
            link_state = 0
        else:
            link_state = 1 if state else 2
        vf_config = {'vf': vf_index, 'link_state': link_state}
        ip.link.set_vf_feature(vf_config)
~~~

Can we make this either configurable through configuration files or revert to the default behavior of "auto" ?