Rockbox Utility binary has been renamed quite a while ago, make sure the manifest for Windows matches. Change-Id: If420075dc798ff3ec9c66e36f57d91af4e7d3b48
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16120 a1c6a512-1295-4272-9138-f99709370657