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/games/fairymax/default.nix

@@ -0,0 +1,39 @@
+{lib, stdenv, fetchurl}:
+stdenv.mkDerivation rec {
+  pname = "fairymax";
+  version = "4.8";
+  src = fetchurl {
+    url = "http://home.hccnet.nl/h.g.muller/fmax4_8w.c";
+    sha256 = "01vxhpa4z0613mkgkzmsln293wxmyp5kdzil93cd1ik51q4gwjca";
+  };
+  ini = fetchurl {
+    url = "http://home.hccnet.nl/h.g.muller/fmax.ini";
+    sha256 = "1zwx70g3gspbqx1zf9gm1may8jrli9idalvskxbdg33qgjys47cn";
+  };
+  unpackPhase = ''
+    cp ${src} fairymax.c
+    cp ${ini} fmax.ini
+  '';
+  buildPhase = ''
+    $CC *.c -Wno-return-type -o fairymax -DINI_FILE='"'"$out/share/fairymax/fmax.ini"'"'
+  '';
+  installPhase = ''
+    mkdir -p "$out"/{bin,share/fairymax}
+    cp fairymax "$out/bin"
+    cp fmax.ini "$out/share/fairymax"
+  '';
+  meta = {
+    description = "A small chess engine supporting fairy pieces";
+    longDescription = ''
+       A version of micro-Max that reads the piece description
+       from a file fmax.ini, so that arbitrary fairy pieces can be
+       implemented. This version (4.8J) supports up to 15 piece types,
+       and board sizes up to 12x8. A Linux port exists in the
+       format of a debian package.
+    '';
+    license = lib.licenses.free ;
+    maintainers = [lib.maintainers.raskin];
+    platforms = lib.platforms.all;
+    homepage = "http://home.hccnet.nl/h.g.muller/dwnldpage.html";
+  };
+}