[CI] am57xx-evm: linux-4.19.y 6a31767f84ad Failure

Build URL: https://ci.linaro.org/job/openembedded-lkft-linux-stable-rc-4.19/DISTRO=lkft... Full log: https://ci.linaro.org/job/openembedded-lkft-linux-stable-rc-4.19/DISTRO=lkft... Parsed warnings/errors: https://ci.linaro.org/job/openembedded-lkft-linux-stable-rc-4.19/DISTRO=lkft... Git branch: linux-4.19.y Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Git commit: 6a31767f84ad31445865f1297d49937319f775c3

Errors: ERROR: perf-4.2-r9 do_populate_lic: QA Issue: perf: LIC_FILES_CHKSUM points to an invalid file: /srv/oe/build/tmp-lkft-glibc/work/am57xx_evm-linaro-linux-gnueabi/perf/4.2-r9/linux-tools-4.2/COPYING [license-checksum]