debian/4.8.5.final+shim4.10.4-1+deb9u12 manually sign after build

Upstream 4.8 EOL and out of security support

This is the current commit on upstream/stable-4.8 and we do not expect
it to ever advance again.

Signed-off-by: Ian Jackson <ian.jackson@citrix.com>

xen release 4.11.3+24-g14b62ab3e5-1 for unstable (sid) [dgit]
[dgit distro=debian]

xen release 4.11.3+24-g14b62ab3e5-1 for unstable (sid) [dgit]
[dgit distro=debian]

Tag current upstream 4.11-stable branch for Debian baseline

Xen 4.12.2

Xen 4.13.0

Xen 4.13.0-rc5

Xen 4.11.3

Xen 4.13.0-rc4

Xen 4.13.0-rc3

Xen 4.13.0-rc2

Xen 4.13.0-rc1

Xen 4.12.1

Xen 4.10.4

Xen 4.11.2

xen release 4.11.1+92-g6c33308a8d-2 for unstable (sid) [dgit]
[dgit distro=debian]

xen release 4.11.1+92-g6c33308a8d-2 for unstable (sid) [dgit]
[dgit distro=debian]

xen release 4.11.1+92-g6c33308a8d-1 for unstable (sid) [dgit]
[dgit distro=debian]

xen release 4.11.1+92-g6c33308a8d-1 for unstable (sid) [dgit]
[dgit distro=debian]