Only build selftests for debug builds upstream
Selftests configs pull in a ton of debug options, which is not what most of the tests expect on a regular (non-debug) build. Thus, we should be able to build a regular x86_64 kernel and a separate x86_64 kernel with debug options and selftests.
Signed-off-by: Veronika Kabatova vkabatov@redhat.com