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/system/wsmancli/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkg-config
+, openssl, openwsman }:
+
+stdenv.mkDerivation rec {
+  pname = "wsmancli";
+  version = "2.6.0";
+
+  src = fetchFromGitHub {
+    owner  = "Openwsman";
+    repo   = "wsmancli";
+    rev    = "v${version}";
+    sha256 = "0a67fz9lj7xkyfqim6ai9kj7v6hzx94r1bg0g0l5dymgng648b9j";
+  };
+
+  nativeBuildInputs = [ autoreconfHook pkg-config ];
+
+  buildInputs = [ openwsman openssl ];
+
+  postPatch = ''
+    touch AUTHORS NEWS README
+  '';
+
+  meta = with lib; {
+    description = "Openwsman command-line client";
+    longDescription = ''
+      Openwsman provides a command-line tool, wsman, to perform basic
+      operations on the command-line. These operations include Get, Put,
+      Invoke, Identify, Delete, Create, and Enumerate. The command-line tool
+      also has several switches to allow for optional features of the
+      WS-Management specification and Testing.
+    '';
+    downloadPage = "https://github.com/Openwsman/wsmancli/releases";
+    inherit (openwsman.meta) homepage license maintainers platforms;
+  };
+}