Updated the hyperv-iso builder of the eval-win81x64-enterprise.json template to prefix each floppy_files entry with the template_dir template variable.
Updated the hyperv-iso builder of the eval-win81x64-enterprise.json template to prefix each floppy_files entry with the template_dir template variable.

boxcutter/windows,HirotakaKato/boxcutter-windows-ja,HirotakaKato/boxcutter-windows-ja,HirotakaKato/boxcutter-windows-ja,boxcutter/windows,boxcutter/windows