tests/vm: skip X11 in openbsd installation

As a VM used only for automated testing there is no need to
install the X11 stack.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230322123639.836104-2-berrange@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
1 file changed