tests/docker: update debian-amd64 with lcitool

The one minor wrinkle we need to account for is the netmap support
still requires building from source. We also include cscope and GNU
global as they are used in one of the builds.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Luigi Rizzo <rizzo@iet.unipi.it>
Cc: Giuseppe Lettieri <g.lettieri@iet.unipi.it>
Cc: Vincenzo Maffione <v.maffione@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220527153603.887929-12-alex.bennee@linaro.org>