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/log-symbols/default.nix

@@ -0,0 +1,29 @@
+{ buildPythonPackage
+, colorama
+, fetchPypi
+, isPy27
+, lib }:
+
+buildPythonPackage rec {
+  pname = "log_symbols";
+  version = "0.0.14";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0mh5d0igw33libfmbsr1ri1p1y644p36nwaa2w6kzrd8w5pvq2yg";
+  };
+
+  propagatedBuildInputs = [ colorama ];
+
+  # Tests are not included in the PyPI distribution and the git repo does not have tagged releases
+  doCheck = false;
+  pythonImportsCheck = [ "log_symbols" ];
+
+  meta = with lib; {
+    description = "Colored Symbols for Various Log Levels.";
+    homepage = "https://github.com/manrajgrover/py-log-symbols";
+    license = licenses.mit;
+    maintainers = with maintainers; [ urbas ];
+  };
+}