If an error occurs, set an error exit code so the world knows about it. This fixes
issues where the autobuilder doesn't notice these failures.
[YOCTO #7265]
(From OE-Core rev: b219377defc9517af360986352bd7da1a7906f10)
(From OE-Core rev: 88b9a9dd491d6803a72c497cf674434da14704b7)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>