uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/networking/cluster/k3s/patches/0001-scrips-download-strip-downloading-just-package-CRD.patch

@@ -0,0 +1,41 @@
+From 6f53bd36a40da4c71486e3b79f6e32d53d6eea5d Mon Sep 17 00:00:00 2001
+From: Euan Kemp <euank@euank.com>
+Date: Thu, 3 Feb 2022 23:50:40 -0800
+Subject: [PATCH 2/2] scrips/download: strip downloading, just package CRD
+
+The CRD packaging is a complicated set of commands, so let's reuse it.
+---
+ scripts/download | 10 ++--------
+ 1 file changed, 2 insertions(+), 8 deletions(-)
+
+diff --git a/scripts/download b/scripts/download
+index 5effc0562a..82361803ee 100755
+--- a/scripts/download
++++ b/scripts/download
+@@ -24,12 +24,6 @@ rm -rf ${CONTAINERD_DIR}
+ mkdir -p ${CHARTS_DIR}
+ mkdir -p ${DATA_DIR}
+ 
+-curl --compressed -sfL https://github.com/k3s-io/k3s-root/releases/download/${VERSION_ROOT}/k3s-root-${ARCH}.tar | tar xf - --exclude=bin/socat
+-
+-git clone --single-branch --branch=${VERSION_RUNC} --depth=1 https://github.com/opencontainers/runc ${RUNC_DIR}
+-
+-git clone --single-branch --branch=${VERSION_CONTAINERD} --depth=1 https://github.com/k3s-io/containerd ${CONTAINERD_DIR}
+-
+ setup_tmp() {
+     TMP_DIR=$(mktemp -d --tmpdir=${CHARTS_DIR})
+     cleanup() {
+@@ -44,8 +38,8 @@ setup_tmp() {
+ 
+ download_and_package_traefik () {
+   echo "Downloading Traefik Helm chart from ${TRAEFIK_URL}"
+-  curl -sfL ${TRAEFIK_URL} -o ${TMP_DIR}/${TRAEFIK_FILE}
+-  code=$?
++  # nixpkgs: copy in our known traefik chart instead
++  cp $TRAEFIK_CHART_FILE ${TMP_DIR}/${TRAEFIK_FILE}
+ 
+   if [ $code -ne 0 ]; then
+     echo "Error: Failed to download Traefik Helm chart!"
+-- 
+2.34.1
+