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/grip/default.nix

@@ -0,0 +1,42 @@
+{ lib
+, fetchFromGitHub
+# Python bits:
+, buildPythonPackage
+, pytest
+, responses
+, docopt
+, flask
+, markdown
+, path-and-address
+, pygments
+, requests
+, tabulate
+}:
+
+buildPythonPackage rec {
+  pname = "grip";
+  version = "4.6.1";
+
+  src = fetchFromGitHub {
+    owner = "joeyespo";
+    repo = "grip";
+    rev = "v${version}";
+    sha256 = "sha256-CHL2dy0H/i0pLo653F7aUHFvZHTeZA6jC/rwn1KrEW4=";
+  };
+
+  checkInputs = [ pytest responses ];
+
+  propagatedBuildInputs = [ docopt flask markdown path-and-address pygments requests tabulate ];
+
+  checkPhase = ''
+      export PATH="$PATH:$out/bin"
+      py.test -xm "not assumption"
+  '';
+
+  meta = with lib; {
+    description = "Preview GitHub Markdown files like Readme locally before committing them";
+    homepage = "https://github.com/joeyespo/grip";
+    license = licenses.mit;
+    maintainers = with maintainers; [ koral ];
+  };
+}