Currently stamps end up at the top level of DL_DIR even if the files
themselves are in a directory structure. This patch preserves path
components allowing the top level directory to be less populated
which is an advantage for large sstate caches.
(Bitbake rev: 59921ce3ed7a4c0b7f8ef1a101ad9127469bf1fd)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>