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/misc/mdl/Gemfile

@@ -0,0 +1,3 @@
+source "https://rubygems.org"
+
+gem "mdl"

pkgs/development/tools/misc/mdl/Gemfile.lock

@@ -0,0 +1,30 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    chef-utils (16.7.61)
+    kramdown (2.3.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
+    mdl (0.11.0)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.1)
+      mixlib-cli (~> 2.1, >= 2.1.1)
+      mixlib-config (>= 2.2.1, < 4)
+      mixlib-shellout
+    mixlib-cli (2.1.8)
+    mixlib-config (3.0.9)
+      tomlrb
+    mixlib-shellout (3.2.2)
+      chef-utils
+    rexml (3.2.4)
+    tomlrb (2.0.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  mdl
+
+BUNDLED WITH
+   2.1.4

pkgs/development/tools/misc/mdl/default.nix

@@ -0,0 +1,17 @@
+{ lib, bundlerApp, bundlerUpdateScript }:
+
+bundlerApp {
+  pname = "mdl";
+  gemdir = ./.;
+  exes = [ "mdl" ];
+
+  passthru.updateScript = bundlerUpdateScript "mdl";
+
+  meta = with lib; {
+    description = "A tool to check markdown files and flag style issues";
+    homepage = "https://github.com/markdownlint/markdownlint";
+    license = licenses.mit;
+    maintainers = with maintainers; [ gerschtli manveru nicknovitski ];
+    platforms = platforms.all;
+  };
+}

pkgs/development/tools/misc/mdl/gemset.nix

@@ -0,0 +1,97 @@
+{
+  chef-utils = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "14xd2md3cda42afl28hr5q4ng195zmqfn04w2bxr4s2fb0gglbrz";
+      type = "gem";
+    };
+    version = "16.7.61";
+  };
+  kramdown = {
+    dependencies = ["rexml"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1vmw752c26ny2jwl0npn0gbyqwgz4hdmlpxnsld9qi9xhk5b1qh7";
+      type = "gem";
+    };
+    version = "2.3.0";
+  };
+  kramdown-parser-gfm = {
+    dependencies = ["kramdown"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0a8pb3v951f4x7h968rqfsa19c8arz21zw1vaj42jza22rap8fgv";
+      type = "gem";
+    };
+    version = "1.1.0";
+  };
+  mdl = {
+    dependencies = ["kramdown" "kramdown-parser-gfm" "mixlib-cli" "mixlib-config" "mixlib-shellout"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0vgzq6v2scd8n4cmx8rrypqmchnhg4wccrhiakg2i8fzv7wxplqq";
+      type = "gem";
+    };
+    version = "0.11.0";
+  };
+  mixlib-cli = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1ydxlfgd7nnj3rp1y70k4yk96xz5cywldjii2zbnw3sq9pippwp6";
+      type = "gem";
+    };
+    version = "2.1.8";
+  };
+  mixlib-config = {
+    dependencies = ["tomlrb"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1askip583sfnz25gywd508l3vj5wnvx9vp7gm1sfnixm7amssrwq";
+      type = "gem";
+    };
+    version = "3.0.9";
+  };
+  mixlib-shellout = {
+    dependencies = ["chef-utils"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0y1z0phkdhpbsn8vz7a86nhkr7ra619j86z5p75amz61kfpw42z9";
+      type = "gem";
+    };
+    version = "3.2.2";
+  };
+  rexml = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1mkvkcw9fhpaizrhca0pdgjcrbns48rlz4g6lavl5gjjq3rk2sq3";
+      type = "gem";
+    };
+    version = "3.2.4";
+  };
+  tomlrb = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0ssyvjcvaisv70f21arlmnw5a1ryzmxzz4538vdwfslz9xxl27sr";
+      type = "gem";
+    };
+    version = "2.0.0";
+  };
+}