Workaround for "Could not find a controller named 'IDE Controller'"

Issue: https://github.com/xdissent/ievms/issues/204

Not sure where the change originates (possibly a change introduced
in newer versions of virtualbox or the IE images), but this works
around the controller name being 'IDE' instead of 'IDE Controller'
Merge pull request #1 from dy-dx/workaround_ide_controller_name_change

Workaround for "Could not find a controller named 'IDE Controller'"