Mock the file creation for the GetConfigdriveTestCase tests
Mock the file creation for the GetConfigdriveTestCase tests

The patch mock the call to the tempfile.NamedTemporaryFile in the
GetConfigdriveTestCase test cases.

Closes-Bug: #1472245
Change-Id: Id92fd34ee334a0a8df618b8814be19d06a907436

bacaldwell/ironic,devananda/ironic,dims/ironic,redhat-openstack/ironic,pshchelo/ironic,NaohiroTamura/ironic,ionutbalutoiu/ironic,naterh/ironic,ionutbalutoiu/ironic,SauloAislan/ironic,hpproliant/ironic,dims/ironic,pshchelo/ironic,openstack/ironic,NaohiroTamura/ironic,SauloAislan/ironic,bacaldwell/ironic,openstack/ironic,Tan0/ironic