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/pypi2nix/default.nix

@@ -0,0 +1,25 @@
+{ python3
+}:
+with python3;
+
+pkgs.buildPythonApplication rec {
+  pname = "pypi2nix";
+  version = "2.0.4";
+  src = pkgs.fetchPypi {
+    inherit pname version;
+    sha256 = "0y4zkkcijz5hchd8j6a106ysrg1dnad7dzdgnmz38rgm6zbrky0d";
+  };
+  propagatedBuildInputs = with pkgs; [
+    attrs
+    click
+    jinja2
+    nix-prefetch-github
+    packaging
+    parsley
+    setuptools
+    toml
+    jsonschema
+  ];
+  # https://github.com/nix-community/pypi2nix/issues/460
+  meta.broken = true;
+}