tool: cleanup old enum names in comments left over from 34046.

I forget about them in one of the rebases:
http://gerrit.ovirt.org/#/c/34046/2..4/lib/vdsm/tool/configurators/__init__.py,cm
(They where actually replaced in a later commit)

Change-Id: I9d230ff64cdcda72d9287a4ff27ab0ffc0edb47b
Signed-off-by: Mooli Tayer <mtayer@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/35702
Reviewed-by: Yaniv Bronhaim <ybronhei@redhat.com>
Reviewed-by: Dan Kenigsberg <danken@redhat.com>