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/ephemeral-port-reserve/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, stdenv
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+}:
+
+let
+  pname = "ephemeral-port-reserve";
+  version = "1.1.4";
+in
+buildPythonPackage {
+  inherit pname version;
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "Yelp";
+    repo = "ephemeral-port-reserve";
+    rev = "v${version}";
+    hash = "sha256-R6NRpfaT05PO/cTWgCakiGfCuCyucjVOXbAezn5x1cU=";
+  };
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  disabledTests = lib.optionals stdenv.isDarwin [
+    # can't find hostname in our darwin build environment
+    "test_fqdn"
+  ];
+
+  pythonImportsCheck = [
+    "ephemeral_port_reserve"
+  ];
+
+  meta = with lib; {
+    description = "Find an unused port, reliably";
+    homepage = "https://github.com/Yelp/ephemeral-port-reserve/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ hexa ];
+  };
+}