Rename ironic-ilo-virtualmedia-deploy -> *-driver

The blueprint which is referenced by this spec is named
ironic-ilo-virtualmedia-driver. This name is correctly linked from
line 6 within the spec. However, the spec itself is misnamed.

This patch renames the spec file so that it matches the corresponding
blueprint.

Change-Id: I178be5cf55952e3ff674be121e19f2da3846eff5