[CI] hikey: linux-4.9.y f890c3a34d9b Failure

Build URL: https://ci.linaro.org/job/openembedded-lkft-linux-stable-rc-4.9/DISTRO=lkft,... Full log: https://ci.linaro.org/job/openembedded-lkft-linux-stable-rc-4.9/DISTRO=lkft,... Parsed warnings/errors: https://ci.linaro.org/job/openembedded-lkft-linux-stable-rc-4.9/DISTRO=lkft,... Git branch: linux-4.9.y Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Git commit: f890c3a34d9b707475ea33b9a10f8d21d01998db

Errors: ERROR: ExpansionError during parsing /srv/oe/build/conf/../../layers/meta-lkft/recipes-overlayed/kselftests/kselftests-next_git.bb