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/development/libraries/libunibreak/default.nix

@@ -0,0 +1,25 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook }:
+
+stdenv.mkDerivation rec {
+  pname = "libunibreak";
+  version = "5.0";
+
+  src = let
+      rev_version = lib.replaceStrings ["."] ["_"] version;
+  in fetchFromGitHub {
+    owner = "adah1972";
+    repo = pname;
+    rev = "libunibreak_${rev_version}";
+    sha256 = "sha256-ju+DNCzwD+y/ebLVBU96iNpE1Wt7/K0qLcZHzWGzrWQ=";
+  };
+
+  nativeBuildInputs = [ autoreconfHook ];
+
+  meta = with lib; {
+    homepage = "https://github.com/adah1972/libunibreak";
+    description = "Implementation of line breaking and word breaking algorithms as in the Unicode standard";
+    license = licenses.zlib;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.coroa ];
+  };
+}