'Initializes the connection and returns connection info.
Assign any created volume to a compute node/host so that it can be
used from that host.
The  driver returns a driver_volume_type of \'fibre_channel\'.
The target_wwn can be a single entry or a list of wwns that
correspond to the list of remote wwn(s) that will export the volume.
The initiator_target_map is a map that represents the remote wwn(s)
and a list of wwns which are visible to the remote wwn(s).
Example return values:
FC:
\'driver_volume_type\': \'fibre_channel\'
\'data\': {
\'target_discovered\': True,
\'target_lun\': 1,
\'target_wwn\': [\'1234567890123\', \'0987654321321\'],
\'initiator_target_map\': {
\'1122334455667788\': [\'1234567890123\',
\'0987654321321\']
iSCSI:
\'driver_volume_type\': \'iscsi\'
\'data\': {
\'target_discovered\': True,
\'target_iqns\': [\'iqn.2010-10.org.openstack:volume-00001\',
\'iqn.2010-10.org.openstack:volume-00002\'],
\'target_portals\': [\'127.0.0.1:3260\', \'127.0.1.1:3260\'],
\'target_luns\': [1, 1],'

@zm_utils.add_fc_zone
def initialize_connection(self, volume, connector):

    return self.adapter.initialize_connection(volume, connector)
