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/applications/misc/flavours/default.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchFromGitHub, rustPlatform, libiconv, installShellFiles }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "flavours";
+  version = "0.5.2";
+
+  src = fetchFromGitHub {
+    owner = "Misterio77";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-P7F7PHP2EiZz6RgKbmqXRQOGG1P8TJ1emR0BEY9yBqk=";
+  };
+
+  buildInputs = lib.optionals stdenv.isDarwin [ libiconv ];
+
+  cargoSha256 = "sha256-QlCjAtQGITGrWNKQM39QPmv/MPZaaHfwdHjal2i1qv4=";
+
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installShellCompletion --cmd flavours \
+      --zsh <($out/bin/flavours --completions zsh) \
+      --fish <($out/bin/flavours --completions fish) \
+      --bash <($out/bin/flavours --completions bash)
+  '';
+
+  meta = with lib; {
+    description = "An easy to use base16 scheme manager/builder that integrates with any workflow";
+    homepage = "https://github.com/Misterio77/flavours";
+    changelog = "https://github.com/Misterio77/flavours/releases/tag/v${version}";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fortuneteller2k ];
+  };
+}