Description of problem:
Fix usages of Add Remove and list for StorageConnections in iSCSI Bond

Version-Release number of selected component (if applicable):


How reproducible:
100%

Steps to Reproduce:
1. Try to use the following:
Get a list of Storage Connections contained in the iSCSI bond:
Get    /api/datacenters/{datacenter_id}/iscsibonds/{iscsibond_id}/storageconnections/
    
Get a specific Storage Connection in the iSCSI bond:
Get /api/datacenters/{datacenter_id}/iscsibonds/{iscsibond_id}/storageconnections/{storage_id}/
    
Adding a new Storage Connection to an existing iSCSI Bond:
POST /api/datacenters/{datacenter_id}/iscsibonds HTTP/1.1
Accept: application/xml
<storage_connection id="{connection_id}"></storage_connection>
    
Remove a Storage Connection from the existing iSCSi Bond:
DELETE /api/datacenters/{datacenter_id}/iscsibonds/{iscsibond_id}/storageconnections/{storage_id}/ HTTP/1.1

Actual results:
The operation described in the steps to reproduce does not work

Expected results:


Additional info: