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/simplefix/default.nix

@@ -0,0 +1,25 @@
+{ lib, python, buildPythonPackage, fetchFromGitHub }:
+
+buildPythonPackage rec {
+  pname = "simplefix";
+  version = "1.0.15";
+
+  src = fetchFromGitHub {
+    repo = "simplefix";
+    owner = "da4089";
+    rev = "v${version}";
+    sha256 = "sha256-GQHMotxNRuRv6zXhrD02T+aFgfYe3RnvUGADsBeSPbA=";
+  };
+
+  checkPhase = ''
+    cd test
+    ${python.interpreter} -m unittest all
+  '';
+
+  meta = with lib; {
+    description = "Simple FIX Protocol implementation for Python";
+    homepage = "https://github.com/da4089/simplefix";
+    license = licenses.mit;
+    maintainers = with maintainers; [ catern ];
+  };
+}