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/ledgerwallet/default.nix

@@ -0,0 +1,51 @@
+{ lib, stdenv
+, fetchFromGitHub
+, fetchpatch
+, buildPythonPackage
+, cryptography
+, click
+, construct
+, ecdsa
+, hidapi
+, intelhex
+, pillow
+, protobuf
+, requests
+, tabulate
+, AppKit
+}:
+
+buildPythonPackage rec {
+  pname = "ledgerwallet";
+  version = "0.1.2";
+
+  src = fetchFromGitHub {
+    owner = "LedgerHQ";
+    repo = "ledgerctl";
+    rev = "v${version}";
+    sha256 = "0fb93h2wxm9as9rsywlgz2ng4wrlbjphn6mgbhj6nls2i86rrdxk";
+  };
+
+  patches = [
+    (fetchpatch {
+      # Fix removed function in construct library
+      url = "https://github.com/LedgerHQ/ledgerctl/commit/fd23d0e14721b93789071e80632e6bd9e47c1256.patch";
+      sha256 = "sha256-YNlENguPQW5FNFT7mqED+ghF3TJiKao4H+56Eu+j+Eo=";
+      excludes = [ "setup.py" ];
+    })
+  ];
+
+  buildInputs = lib.optionals stdenv.isDarwin [ AppKit ];
+  propagatedBuildInputs = [
+    cryptography click construct ecdsa hidapi intelhex pillow protobuf requests tabulate
+  ];
+
+  pythonImportsCheck = [ "ledgerwallet" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/LedgerHQ/ledgerctl";
+    description = "A library to control Ledger devices";
+    license = licenses.mit;
+    maintainers = with maintainers; [ d-xo ];
+  };
+}