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/icnsutil/default.nix

@@ -0,0 +1,31 @@
+{ lib
+, python
+, fetchFromGitHub
+, buildPythonPackage
+}:
+
+buildPythonPackage rec {
+  pname = "icnsutil";
+  version = "1.0.1";
+
+  src = fetchFromGitHub {
+    owner = "relikd";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-TfQvAbP7iCpRQg2G+ejl245NCYo9DpYwMgiwY2BuJnY=";
+  };
+
+  doCheck = true;
+
+  checkPhase = ''
+    ${python.interpreter} tests/test_icnsutil.py
+    ${python.interpreter} tests/test_cli.py
+  '';
+
+  meta = {
+    homepage = "https://github.com/relikd/icnsutil";
+    description = "Create and extract .icns files.";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.reckenrode ];
+  };
+}