Use jq from the host system
Use jq from the host system

We don't import jq into the stage1 rootfs yet, rely on the one installed
on the system.

Signed-off-by: Stefano Stabellini <80980fcaf2ab3f243874695f57b2ed065d8e67e4@aporeto.com>

rkt/stage1-xen,rkt/stage1-xen,rkt/stage1-xen