File _multibuild of Package 000product

<multibuild>
  <package>slcc-paid-ftp-POOL-aarch64</package>
  <package>slcc-paid-ftp-POOL-ppc64le</package>
  <package>slcc-paid-ftp-POOL-s390x</package>
  <package>slcc-paid-ftp-POOL-x86_64</package>
</multibuild>