build: Disable hadolint, adjust subdirs

hadolint doesn't yet support experimental `RUN --mount` syntax.

Signed-off-by: Ilya Dmitrichenko <errordeveloper@gmail.com>

images/scripts/lint.sh

@@ -12,8 +12,7 @@ MAKER_IMAGE="${MAKER_IMAGE:-docker.io/cilium/image-maker:bc81755ec8f6c5afcb10a41
 root_dir="$(git rev-parse --show-toplevel)"
 
 if [ -z "${MAKER_CONTAINER+x}" ] ; then
-   exec docker run --rm --volume "${root_dir}:/src" --workdir /src "${MAKER_IMAGE}" "/src/scripts/$(basename "${0}")"
+   exec docker run --rm --volume "${root_dir}:/src" --workdir /src/images "${MAKER_IMAGE}" "/src/images/scripts/$(basename "${0}")"
 fi
 
 find . -name '*.sh' -exec shellcheck {} +
-find . -name Dockerfile -exec hadolint {} +