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/tracing/default.nix

@@ -0,0 +1,28 @@
+{ lib
+, buildPythonPackage
+, fetchurl
+, sphinx
+}:
+
+buildPythonPackage rec {
+  pname = "tracing";
+  version = "0.8";
+
+  src = fetchurl {
+    url = "http://code.liw.fi/debian/pool/main/p/python-tracing/python-tracing_${version}.orig.tar.gz";
+    sha256 = "1l4ybj5rvrrcxf8csyq7qx52izybd502pmx70zxp46gxqm60d2l0";
+  };
+
+  buildInputs = [ sphinx ];
+
+  # error: invalid command 'test'
+  doCheck = false;
+
+  meta = with lib; {
+    homepage = "https://liw.fi/tracing/";
+    description = "Python debug logging helper";
+    license = licenses.gpl3;
+    maintainers = [];
+  };
+
+}