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/shells/zsh/antigen/default.nix

@@ -0,0 +1,26 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  version = "2.2.3";
+  pname = "antigen";
+
+  src = fetchurl {
+    url = "https://github.com/zsh-users/antigen/releases/download/v${version}/antigen.zsh";
+    sha256 = "1bmp3qf14509swpxin4j9f98n05pdilzapjm0jdzbv0dy3hn20ix";
+  };
+
+  strictDeps = true;
+  dontUnpack = true;
+
+  installPhase = ''
+    outdir=$out/share/antigen
+    mkdir -p $outdir
+    cp $src $outdir/antigen.zsh
+  '';
+
+  meta = {
+    description = "The plugin manager for zsh";
+    homepage = "https://antigen.sharats.me/";
+    license = lib.licenses.mit;
+  };
+}