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/miniball/default.nix

@@ -0,0 +1,26 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation {
+  pname = "miniball";
+  version = "3.0";
+
+  src = fetchurl {
+    url = "https://www.inf.ethz.ch/personal/gaertner/miniball/Miniball.hpp";
+    sha256 = "1piap5v8wqq0aachrq6j50qkr01gzpyndl6vf661vyykrfq0nnd2";
+  };
+
+  dontUnpack = true;
+
+  installPhase = ''
+    mkdir -p $out/include
+    cp $src $out/include/miniball.hpp
+  '';
+
+  meta = {
+    description = "Smallest Enclosing Balls of Points";
+    homepage = "https://www.inf.ethz.ch/personal/gaertner/miniball.html";
+    license = lib.licenses.gpl3;
+    maintainers = [ lib.maintainers.erikryb ];
+    platforms = lib.platforms.unix;
+  };
+}