This is copied from libinput's CI but as one large change rather than
cherry-picking the process on how to get here. meson-build.sh is synched
with libinput's version - it is a more generic version anyway.
With this change we no longer require separate images for the qemu runs,
our default image is qemu-capable and can be run in qemu via
boot2container (b2c).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
