moving staticlibs to workdir broke it since
520c7dc9
Instead of copying the unzipped libs to another directory,
reference them from UnpackedTarball directory instead.

Change-Id: I711cae4305c6888bd923dcb09e51416cbe363377
Reviewed-on: https://gerrit.libreoffice.org/6191Reviewed-by: Michael Stahl <mstahl@redhat.com>
Tested-by: Michael Stahl <mstahl@redhat.com>