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/eliot-tree/default.nix

@@ -0,0 +1,38 @@
+{ lib, python3Packages }:
+
+python3Packages.buildPythonApplication rec {
+  pname = "eliot-tree";
+  version = "19.0.1";
+
+  src = python3Packages.fetchPypi {
+    inherit pname version;
+    sha256 = "18gvijsm0vh3x83mv8dd80c3mpm80r7i111qsg4y7rj4i590phma";
+  };
+
+  checkInputs = with python3Packages; [
+    testtools
+    pytest
+   ];
+
+  propagatedBuildInputs = with python3Packages; [
+    colored
+    eliot
+    iso8601
+    jmespath
+    setuptools
+    toolz
+  ];
+
+  # Tests run eliot-tree in out/bin.
+  checkPhase = ''
+    export PATH=$out/bin:$PATH
+    pytest
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/jonathanj/eliottree";
+    description = "Render Eliot logs as an ASCII tree";
+    license = licenses.mit;
+    maintainers = [ maintainers.dpausp ];
+  };
+}