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/asciitree/default.nix

@@ -0,0 +1,32 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytest
+}:
+
+buildPythonPackage rec {
+  pname = "asciitree";
+  version = "0.3.3";
+
+  src = fetchFromGitHub {
+    owner = "mbr";
+    repo = pname;
+    rev = version;
+    sha256 = "071wlpyi8pa262sj9xdy0zbj163z84dasxad363z3sfndqxw78h1";
+  };
+
+  checkInputs = [
+    pytest
+  ];
+
+  checkPhase = ''
+    pytest
+  '';
+
+  meta = with lib; {
+    description = "Draws ASCII trees";
+    homepage = "https://github.com/mbr/asciitree";
+    license = licenses.mit;
+    maintainers = [ maintainers.costrouc ];
+  };
+}