cpuburn-neon: fix packaging to use a date as version and valid sources

cpuburn-neon: fix packaging to use a date as version and valid sources

* The package were not versioning the sources as the files had no
   version on its name. We workaround it mangling the DL_DIR;

 * We now dynamically check if the machine has or not neon feature and
   set COMPATIBLE_MACHINE.

(From meta-openembedded rev: a17cda6e85f990bd3569df731ec0f223b185ec6b)

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>