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/scmrepo/default.nix

@@ -0,0 +1,58 @@
+{ lib
+, asyncssh
+, buildPythonPackage
+, dulwich
+, fetchFromGitHub
+, fsspec
+, funcy
+, GitPython
+, pathspec
+, pygit2
+, pygtrie
+, pythonOlder
+}:
+
+buildPythonPackage rec {
+  pname = "scmrepo";
+  version = "0.0.24";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "iterative";
+    repo = pname;
+    rev = "refs/tags/${version}";
+    hash = "sha256-S1jeLls0do9sCqTWe8h8+8CO3oM160J97UmISUhTU/s=";
+  };
+
+  propagatedBuildInputs = [
+    asyncssh
+    dulwich
+    fsspec
+    funcy
+    GitPython
+    pathspec
+    pygit2
+    pygtrie
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.cfg \
+      --replace "asyncssh>=2.7.1,<2.9" "asyncssh>=2.7.1"
+  '';
+
+  # Requires a running Docker instance
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "scmrepo"
+  ];
+
+  meta = with lib; {
+    description = "SCM wrapper and fsspec filesystem";
+    homepage = "https://github.com/iterative/scmrepo";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ fab ];
+  };
+}