linux/shim: Kill container upon SIG{TERM,KILL}
linux/shim: Kill container upon SIG{TERM,KILL}

Signed-off-by: Kenfe-Mickael Laventure <10e26728841e39109c2809b6029d4b0763bd81d3@gmail.com>

thaJeztah/containerd,estesp/containerd,thaJeztah/containerd,miaoyq/containerd,estesp/containerd,containerd/containerd,crosbymichael/containerd,mikebrow/containerd,containerd/containerd,vdemeester/containerd,AkihiroSuda/containerd,crosbymichael/containerd,dmcgowan/containerd,vdemeester/containerd,mikebrow/containerd,kunalkushwaha/containerd,miaoyq/containerd,kunalkushwaha/containerd,dmcgowan/containerd