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/tools/nix/nix-script/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, haskellPackages, fetchFromGitHub }:
+
+stdenv.mkDerivation {
+  pname = "nix-script";
+  version = "2020-03-23";
+
+  src  = fetchFromGitHub {
+    owner  = "bennofs";
+    repo   = "nix-script";
+    rev    = "7706b45429ff22c35bab575734feb2926bf8840b";
+    sha256 = "0yiqljamcj9x8z801bwj7r30sskrwv4rm6sdf39j83jqql1fyq7y";
+  };
+
+  buildInputs  = [
+    (haskellPackages.ghcWithPackages (hs: with hs; [ posix-escape ]))
+  ];
+
+  buildPhase = ''
+    runHook preBuild
+
+    mkdir -p $out/bin
+    ghc -O2 $src/nix-script.hs -o $out/bin/nix-script -odir . -hidir .
+
+    runHook postBuild
+  '';
+  installPhase = ''
+    runHook preInstall
+
+    ln -s $out/bin/nix-script $out/bin/nix-scripti
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "A shebang for running inside nix-shell";
+    homepage    = "https://github.com/bennofs/nix-script";
+    license     = licenses.bsd3;
+    maintainers = with maintainers; [ bennofs rnhmjoj ];
+    platforms   = haskellPackages.ghc.meta.platforms;
+  };
+}