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/tools/text/reckon/Gemfile

@@ -0,0 +1,2 @@
+source 'https://rubygems.org'
+gem 'reckon'

pkgs/tools/text/reckon/Gemfile.lock

@@ -0,0 +1,19 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    chronic (0.10.2)
+    highline (2.0.3)
+    rchardet (1.8.0)
+    reckon (0.8.0)
+      chronic (>= 0.3.0)
+      highline (>= 1.5.2)
+      rchardet (>= 1.8.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  reckon
+
+BUNDLED WITH
+   2.2.20

pkgs/tools/text/reckon/default.nix

@@ -0,0 +1,33 @@
+{ stdenv, lib, bundlerEnv, bundlerUpdateScript, makeWrapper }:
+
+stdenv.mkDerivation rec {
+  pname = "reckon";
+  version = (import ./gemset.nix).reckon.version;
+
+  dontUnpack = true;
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  installPhase = let
+    env = bundlerEnv {
+      name = "${pname}-${version}-gems";
+
+      gemdir = ./.;
+    };
+  in ''
+    runHook preInstall
+    mkdir -p $out/bin
+    makeWrapper ${env}/bin/reckon $out/bin/reckon
+    runHook postInstall
+  '';
+
+  passthru.updateScript = bundlerUpdateScript "reckon";
+
+  meta = with lib; {
+    description = "Flexibly import bank account CSV files into Ledger for command line accounting";
+    license = licenses.mit;
+    maintainers = with maintainers; [ nicknovitski ];
+    platforms = platforms.unix;
+    changelog = "https://github.com/cantino/reckon/blob/v${version}/CHANGELOG.md";
+  };
+}

pkgs/tools/text/reckon/gemset.nix

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+{
+  chronic = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1hrdkn4g8x7dlzxwb1rfgr8kw3bp4ywg5l4y4i9c2g5cwv62yvvn";
+      type = "gem";
+    };
+    version = "0.10.2";
+  };
+  highline = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0yclf57n2j3cw8144ania99h1zinf8q3f5zrhqa754j6gl95rp9d";
+      type = "gem";
+    };
+    version = "2.0.3";
+  };
+  rchardet = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1isj1b3ywgg2m1vdlnr41lpvpm3dbyarf1lla4dfibfmad9csfk9";
+      type = "gem";
+    };
+    version = "1.8.0";
+  };
+  reckon = {
+    dependencies = ["chronic" "highline" "rchardet"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0qnghypb9pj7888096xwyrx7myhzk85x69ympxkxki3kxcgcrdfn";
+      type = "gem";
+    };
+    version = "0.8.0";
+  };
+}