[Thomas: add patch to add stdarg.h include needed on uClibc, add missing upstream URL in Config.in, fix license to be LGPLv2.1+ instead of LGPLv2.1] Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>