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/beam-modules/elvis-erlang/default.nix

@@ -0,0 +1,47 @@
+{ fetchFromGitHub, fetchgit, fetchHex, rebar3WithPlugins, rebar3-nix, rebar3Relx
+, buildRebar3, writeScript, lib }:
+
+let
+  owner = "inaka";
+  repo = "elvis";
+in rebar3Relx rec {
+  releaseType = "escript";
+  # The package name "elvis" is already taken
+  pname = "elvis-erlang";
+  version = "1.1.0";
+  src = fetchFromGitHub {
+    inherit owner repo;
+    sha256 = "6vNxr3AYpFuXaIVH9bWw7K5KiF1swfI+CSI43RoMQEA=";
+    rev = version;
+  };
+  beamDeps = builtins.attrValues (import ./rebar-deps.nix {
+    inherit fetchHex fetchgit fetchFromGitHub;
+    builder = buildRebar3;
+  });
+  passthru.updateScript = writeScript "update.sh" ''
+    #!/usr/bin/env nix-shell
+    #!nix-shell -i bash -p bash common-updater-scripts git nix-prefetch-git gnutar gzip "rebar3WithPlugins {globalPlugins = [beamPackages.rebar3-nix];}"
+
+    set -euo pipefail
+
+    latest=$(list-git-tags | sort -V | tail -1)
+    if [ "$latest" != "${version}" ]; then
+      nixpkgs="$(git rev-parse --show-toplevel)"
+      nix_path="$nixpkgs/pkgs/development/beam-modules/elvis-erlang"
+      update-source-version elvis-erlang "$latest" --version-key=version --print-changes --file="$nix_path/default.nix"
+      tmpdir=$(mktemp -d)
+      cp -R $(nix-build $nixpkgs --no-out-link -A elvis-erlang.src)/* "$tmpdir"
+      (cd "$tmpdir" && HOME=. rebar3 nix lock -o "$nix_path/rebar-deps.nix")
+    else
+      echo "${repo} is already up-to-date"
+    fi
+  '';
+  meta = with lib; {
+    homepage = "https://github.com/inaka/elvis";
+    description = "Erlang Style Reviewer";
+    platforms = platforms.unix;
+    license = licenses.asl20;
+    maintainers = with lib.maintainers; [ dlesl ];
+    mainProgram = "elvis";
+  };
+}