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/python-modules/proxy_tools/default.nix

@@ -0,0 +1,25 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+}:
+
+buildPythonPackage rec {
+  pname = "proxy_tools";
+  version = "0.1.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-zLN1H1KcBH4tilhEDYayBTA88P6BRveE0cvNlPCigBA=";
+  };
+
+  # no tests in pypi
+  doCheck = false;
+  pythonImportsCheck = [ "proxy_tools" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/jtushman/proxy_tools";
+    description = "Simple (hopefuly useful) Proxy (as in the GoF design pattern) implementation for Python";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [ jojosch ];
+  };
+}