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/es/default.nix

@@ -0,0 +1,44 @@
+{ lib, stdenv, fetchurl, readline, bison }:
+
+stdenv.mkDerivation rec {
+
+  pname = "es";
+  version = "0.9.2";
+
+  src = fetchurl {
+    url = "https://github.com/wryun/es-shell/releases/download/v${version}/es-${version}.tar.gz";
+    sha256 = "sha256-ySZIK0IITpA+uHHuHrDO/Ana5vGt64QI3Z6TMDXE9d0=";
+  };
+
+  # The distribution tarball does not have a single top-level directory.
+  preUnpack = ''
+    mkdir $name
+    cd $name
+    sourceRoot=.
+  '';
+
+  strictDeps = true;
+  nativeBuildInputs = [ bison ];
+  buildInputs = [ readline ];
+
+  configureFlags = [ "--with-readline" ];
+
+  meta = with lib; {
+    description = "An extensible shell with higher order functions";
+    longDescription =
+      ''
+        Es is an extensible shell. The language was derived
+        from the Plan 9 shell, rc, and was influenced by
+        functional programming languages, such as Scheme,
+        and the Tcl embeddable programming language.
+      '';
+    homepage = "http://wryun.github.io/es-shell/";
+    license = licenses.publicDomain;
+    maintainers = with maintainers; [ sjmackenzie ttuegel ];
+    platforms = platforms.all;
+  };
+
+  passthru = {
+    shellPath = "/bin/es";
+  };
+}