cpuburn-neon: Upgrade to version 20140626

Previous location is no longer accessible and breaks builds that include
cpuburn-neon.  This updates the location to fix the build breaks

Signed-off-by: Lauren Post <lauren.post@freescale.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>