packaging: fix typo in w2k8r2

caused sysprep floppy not to be sent to Windows 2008 R2 guests

Change-Id: Ic6fa3bf93935a89a7efca2871e776a3231847a51
Bug-Url: https://bugzilla.redhat.com/1025829
Signed-off-by: Martin Polednik <mpoledni@redhat.com>