numactl: new package

[Thomas: updated to 2.0.8, restricted to supported architectures,
added licensing informations, updated to latest Buildroot package
infrastructure]

[Peter: Fix LICENSE_FILES typo, needs largefile support in toolchain]
Signed-off-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>