meta-security/meta-integrity/recipes-core/base-files/base-files-ima.inc

# Append iversion option for auto types
do_install_append() {
    sed -i 's/\s*auto\s*defaults/&,iversion/' "${D}${sysconfdir}/fstab"
    echo 'securityfs  /sys/kernel/security  securityfs  defaults  0  0' >> "${D}${sysconfdir}/fstab"
}