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/git-privacy/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, fetchFromGitHub
+, git
+, python3
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "git-privacy";
+  version = "2.1.0";
+  format = "setuptools";
+
+  disabled = python3.pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "EMPRI-DEVOPS";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0hfy43fip1l81672xfwqrz1jryzkjy7h9f2lyikxgibibil0p444";
+  };
+
+  propagatedBuildInputs = with python3.pkgs; [
+    click
+    git-filter-repo
+    GitPython
+    pynacl
+    setuptools
+  ];
+
+  checkInputs = with python3.pkgs; [
+    git
+    pytestCheckHook
+  ];
+
+  disabledTests = [
+    # Tests want to interact with a git repo
+    "TestGitPrivacy"
+  ];
+
+  pythonImportsCheck = [
+    "gitprivacy"
+  ];
+
+  meta = with lib; {
+    description = "Tool to redact Git author and committer dates";
+    homepage = "https://github.com/EMPRI-DEVOPS/git-privacy";
+    license = with licenses; [ bsd2 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}