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/interpreters/nickel/default.nix

@@ -0,0 +1,33 @@
+{ lib
+, rustPlatform
+, fetchFromGitHub
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "nickel";
+  version = "0.1.0";
+
+  src  = fetchFromGitHub {
+    owner = "tweag";
+    repo = pname;
+    rev = "refs/tags/${version}"; # because pure ${version} doesn't work
+    hash = "sha256-St8oK9vP2cAhsNindkebtAMeRPwYggP9E4CciSZc7oA=";
+  };
+
+  cargoSha256 = "sha256-VsyK/api8acIpADpXQ8RdbRLiZwHFSDH0vwQrZQ8zp4=";
+
+  meta = with lib; {
+    homepage = "https://nickel-lang.org/";
+    description = "Better configuration for less";
+    longDescription = ''
+      Nickel is the cheap configuration language.
+
+      Its purpose is to automate the generation of static configuration files -
+      think JSON, YAML, XML, or your favorite data representation language -
+      that are then fed to another system. It is designed to have a simple,
+      well-understood core: it is in essence JSON with functions.
+    '';
+    license = licenses.mit;
+    maintainers = with maintainers; [ AndersonTorres ];
+  };
+}