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/development/tools/poetry2nix/update

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -euo pipefail
+pwd=$(pwd)
+workdir=$(mktemp -d)
+
+function cleanup {
+    cd "$pwd"
+    rm -rf $workdir
+}
+trap cleanup EXIT
+
+cd "$workdir"
+
+curl -L -s https://github.com/nix-community/poetry2nix/archive/master.tar.gz | tar -xz
+mv poetry2nix-master/* .
+
+mkdir build
+cp *.* build/
+cp -r overrides pkgs hooks bin build/
+rm build/shell.nix build/generate.py build/overlay.nix build/flake.* build/check-fmt.nix build/pkgs/poetry/update*
+
+cat > build/README.md << EOF
+Dont change these files here, they are maintained at https://github.com/nix-community/poetry2nix
+
+The update procedure is as-follows:
+1. Send your change to the upstream poetry2nix repository
+2. Get it approved with tests passing
+3. Run the update script in pkgs/development/tools/poetry2nix
+EOF
+
+rm -rf "$pwd/poetry2nix"
+mv build "$pwd/poetry2nix"