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/data/fonts/poly/default.nix

@@ -0,0 +1,50 @@
+{ lib, stdenv, fetchurl, unzip }:
+
+stdenv.mkDerivation rec {
+  name = "poly";
+
+  regular = fetchurl {
+    # Finally a mirror that has a sha256 that doesn't change.
+    url = "https://googlefontdirectory.googlecode.com/hg-history/d7441308e589c9fa577f920fc4152fa32477a267/poly/src/Poly-Regular.otf";
+    sha256 = "1mxp2lvki6b1h7r9xcj1ld0g4z5y3dmsal85xam4yr764zpjzaiw";
+  };
+
+  italic = fetchurl {
+    # Finally a mirror that has a sha256 that doesn't change.
+    url = "https://googlefontdirectory.googlecode.com/hg-history/d7441308e589c9fa577f920fc4152fa32477a267/poly/src/Poly-Italic.otf";
+    sha256 = "1chzcy3kyi7wpr4iq4aj1v24fq1wwph1v5z96dimlqcrnvm66h2l";
+  };
+
+  nativeBuildInputs = [unzip];
+
+  sourceRoot = ".";
+
+  dontUnpack = true;
+
+  installPhase = ''
+    mkdir -p $out/share/fonts/opentype
+    cp ${regular} $out/share/fonts/opentype/Poly-Regular.otf
+    cp ${italic} $out/share/fonts/opentype/Poly-Italic.otf
+  '';
+
+  outputHashAlgo = "sha256";
+  outputHashMode = "recursive";
+  outputHash = "11d7ldryfxi0wzfrg1bhw23a668a44vdb8gggxryvahmp5ahmq2h";
+
+  meta = {
+    description = "Medium contrast serif font";
+    longDescription = ''
+      With short ascenders and a very high x-height, Poly is efficient in small
+      sizes. Thanks to its careful balance between the x-height and glyph widths,
+      it allows more economy and legibility than standard web serifs, even in
+      small sizes. The aglutinative language for which it was designed contains
+      very long words. The goal was to develop a typeface that would tolerate
+      cramped tracking and that would increase the number of letters on a single
+      line. Poly is a Unicode typeface family that supports Open Type features
+      and languages that use the Latin script and its variants.
+    '';
+    homepage = "http://www.fontsquirrel.com/fonts/poly";
+    license = lib.licenses.ofl;
+    maintainers = with lib.maintainers; [ relrod ];
+  };
+}