Switched _SOURCE to .gz, upstream does not provide bz2 tarballs anymore. Fixes: https://autobuild.buildroot.net/results/66ac5ae4b1cd053122ccebad9f61af02fa5fe7f6/ Co-developed-by: Bernd Kuhls <bernd@kuhls.net> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> (cherry picked from commit 4b33839f12c4638ea148c4ac7ae2e85adf79f936) Signed-off-by: Thomas Perale <thomas.perale@mind.be>