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/text/robodoc/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, autoreconfHook
+}:
+
+stdenv.mkDerivation rec {
+  pname = "robodoc";
+  version = "4.99.44";
+
+  src = fetchFromGitHub {
+    owner = "gumpu";
+    repo = "ROBODoc";
+    rev = "v${version}";
+    sha256 = "l3prSdaGhOvXmZfCPbsZJNocO7y20zJjLQpajRTJOqE=";
+  };
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  hardeningDisable = [ "format" ];
+
+  meta = with lib; {
+    broken = stdenv.isDarwin;
+    homepage = "https://github.com/gumpu/ROBODoc";
+    description = "Documentation Extraction Tool";
+    longDescription = ''
+      ROBODoc is program documentation tool. The idea is to include for every
+      function or procedure a standard header containing all sorts of
+      information about the procedure or function. ROBODoc extracts these
+      headers from the source file and puts them in a separate
+      autodocs-file. ROBODoc thus allows you to include the program
+      documentation in the source code and avoid having to maintain two separate
+      documents. Or as Petteri puts it: "robodoc is very useful - especially for
+      programmers who don't like writing documents with Word or some other
+      strange tool."
+
+      ROBODoc can format the headers in a number of different formats: HTML,
+      RTF, LaTeX, or XML DocBook. In HTML mode it can generate cross links
+      between headers. You can even include parts of your source code.
+
+      ROBODoc works with many programming languages: For instance C, Pascal,
+      Shell Scripts, Assembler, COBOL, Occam, Postscript, Forth, Tcl/Tk, C++,
+      Java -- basically any program in which you can use remarks/comments.
+    '';
+    license = with licenses; gpl3Plus;
+    maintainers = with maintainers; [ AndersonTorres ];
+    platforms = with platforms; all;
+  };
+}