console: do not allow non-pty devices on open()
console: do not allow non-pty devices on open()

We don't allow non-pty devices anyway so don't let open() create unneeded
files.

Signed-off-by: Christian Brauner <48455ab3070520a2d174545c7239d6d0fabd9a83@ubuntu.com>

hallyn/lxc,thmo/lxc,hallyn/lxc,ss1h2a3tw/lxc,caglar10ur/lxc,thmo/lxc,hallyn/lxc,ss1h2a3tw/lxc,ss1h2a3tw/lxc,caglar10ur/lxc,thmo/lxc,caglar10ur/lxc