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/security/bundler-audit/Gemfile

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

pkgs/tools/security/bundler-audit/Gemfile.lock

@@ -0,0 +1,16 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    bundler-audit (0.9.0.1)
+      bundler (>= 1.2.0, < 3)
+      thor (~> 1.0)
+    thor (1.1.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler-audit
+
+BUNDLED WITH
+   2.2.20

pkgs/tools/security/bundler-audit/default.nix

@@ -0,0 +1,29 @@
+{ bundlerEnv, ruby, lib, bundlerUpdateScript }:
+
+bundlerEnv rec {
+  name = "${pname}-${version}";
+  pname = "bundler-audit";
+  version = (import ./gemset.nix).bundler-audit.version;
+
+  inherit ruby;
+  gemdir = ./.;
+
+  passthru.updateScript = bundlerUpdateScript "bundler-audit";
+
+  meta = with lib; {
+    description = "Patch-level verification for Bundler";
+    longDescription = ''
+      Features:
+      - Checks for vulnerable versions of gems in Gemfile.lock.
+      - Checks for insecure gem sources (http://).
+      - Allows ignoring certain advisories that have been manually worked around.
+      - Prints advisory information.
+      - Does not require a network connection.
+    '';
+    homepage    = "https://github.com/rubysec/bundler-audit";
+    changelog   = "https://github.com/rubysec/bundler-audit/blob/v${version}/ChangeLog.md";
+    license     = licenses.gpl3Plus;
+    maintainers = with maintainers; [ primeos nicknovitski ];
+    platforms   = platforms.unix;
+  };
+}

pkgs/tools/security/bundler-audit/gemset.nix

@@ -0,0 +1,23 @@
+{
+  bundler-audit = {
+    dependencies = ["thor"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "05k19l5388248rd74cn2lm2ksci7fzmga74n835v7k31m4kbzw8v";
+      type = "gem";
+    };
+    version = "0.9.0.1";
+  };
+  thor = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "18yhlvmfya23cs3pvhr1qy38y41b6mhr5q9vwv5lrgk16wmf3jna";
+      type = "gem";
+    };
+    version = "1.1.0";
+  };
+}