ci/nouveau: Add nouveau support to the rootfs.

This required updating the kernel to 5.16.12 to get a more stable boot
process.  That kernel rebuild caused an update of the container with
piglit which that was missed in a previous MR, so we got new xfails in x86
swrast.  Also, including modules on arm64 exposed a bug in v3d's
poe-powered.sh rsyncing of modules.

Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15201>

.gitlab-ci/container/create-rootfs.sh

@@ -4,6 +4,7 @@ set -ex
 
 if [ $DEBIAN_ARCH = arm64 ]; then
     ARCH_PACKAGES="firmware-qcom-media
+                   firmware-linux-nonfree
                    libfontconfig1
                    libgl1
                    libglu1-mesa