seccomp: allow personality with UNAME26 bit set
seccomp: allow personality with UNAME26 bit set

From personality(2):

    Have uname(2) report a 2.6.40+ version number rather than a 3.x version
    number.  Added as a stopgap measure to support broken applications that
    could not handle the  kernel  version-numbering  switch  from 2.6.x to 3.x.

This allows both "UNAME26|PER_LINUX" and "UNAME26|PER_LINUX32".

Fixes: "setarch broken in docker packages from Debian stretch"

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

thaJeztah/containerd,dmcgowan/containerd,vdemeester/containerd,estesp/containerd,mikebrow/containerd,dmcgowan/containerd,mikebrow/containerd,containerd/containerd,thaJeztah/containerd,containerd/containerd,vdemeester/containerd,estesp/containerd