[OHAI-412] fix missing stub in linux kernel plugin
[OHAI-412] fix missing stub in linux kernel plugin

Was causing spec failures on windows

sh9189/ohai,jaymzh/ohai,375gnu/ohai,higanworks/ohai,phreakocious/ohai,MSOpenTech/ohai,shtzr840329/ohai,bougyman/ohai,http-418/ohai,adamleff/ohai,mattray/ohai,MSOpenTech/ohai,cmluciano/ohai,btm/ohai,davide125/ohai,nathwill/ohai,higanworks/ohai,dreamnite/ohai,Fodoj/ohai,Fodoj/ohai,acaiafa/ohai,acaiafa/ohai,Juniper/ohai,http-418/ohai,jbfavre/ohai,criteo-forks/ohai,numericillustration/ohai,375gnu/ohai,davide125/ohai,johnbellone/ohai,juliandunn/ohai,tas50/ohai-1,tas50/ohai-1,nathwill/ohai,glennmatthews/ohai,mattray/ohai,adamleff/ohai,n-marton/ohai,jaymzh/ohai,glennmatthews/ohai,btm/ohai,n-marton/ohai,juliandunn/ohai,chef/ohai,bougyman/ohai,criteo-forks/ohai,zshuo/ohai,johnbellone/ohai,jseely/ohai,zshuo/ohai,shtzr840329/ohai,dreamnite/ohai,phreakocious/ohai,numericillustration/ohai,sh9189/ohai,chef/ohai,jseely/ohai,jbfavre/ohai,cmluciano/ohai,Juniper/ohai