source code from : http://gitlab.oe5xbl.ampr.org/oe5hpm/dxlAPRS
commit ID        : 294dd5d0889a06267e3d4c46da20265b756223c8
title            : introduce aarch64
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
introduce aarch64 Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>