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/X11/wmutils-opt/default.nix

@@ -0,0 +1,25 @@
+{ lib, stdenv, fetchFromGitHub, libxcb }:
+
+stdenv.mkDerivation rec {
+  pname = "wmutils-opt";
+  version = "1.0";
+
+  src = fetchFromGitHub {
+    owner = "wmutils";
+    repo = "opt";
+    rev = "v${version}";
+    sha256 = "0gd05qsir1lnzfrbnfh08qwsryz7arwj20f886nqh41m87yqaljz";
+  };
+
+  buildInputs = [ libxcb ];
+
+  installFlags = [ "PREFIX=$(out)" ];
+
+  meta = with lib; {
+    description = "Optional addons to wmutils";
+    homepage = "https://github.com/wmutils/opt";
+    license = licenses.isc;
+    maintainers = with maintainers; [ vifino ];
+    platforms = platforms.unix;
+  };
+}