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/roboto-slab/default.nix

@@ -0,0 +1,41 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation {
+  pname = "roboto-slab";
+  version = "2.000";
+
+  src = fetchFromGitHub {
+    owner = "googlefonts";
+    repo = "robotoslab";
+    rev = "baeeba45e0c3ccdcfb6a70dc564785941aafef5d";
+    sha256 = "1v6z0a2xgwgf9dyj62sriy8ckwpbwlxkki6gfax1f4h4livvzpdn";
+  };
+
+  installPhase = ''
+    mkdir -p $out/share/fonts/truetype
+    cp -a fonts/static/*.ttf $out/share/fonts/truetype/
+  '';
+
+  outputHashAlgo = "sha256";
+  outputHashMode = "recursive";
+  outputHash = "0g663npi5lkvwcqafd4cjrm90ph0nv1lig7d19xzfymnj47qpj8x";
+
+  meta = with lib; {
+    homepage = "https://www.google.com/fonts/specimen/Roboto+Slab";
+    description = "Roboto Slab Typeface by Google";
+    longDescription = ''
+      Roboto has a dual nature. It has a mechanical skeleton and the forms
+      are largely geometric. At the same time, the font features friendly
+      and open curves. While some grotesks distort their letterforms to
+      force a rigid rhythm, Roboto doesn't compromise, allowing letters to
+      be settled into their natural width. This makes for a more natural
+      reading rhythm more commonly found in humanist and serif types.
+
+      This is the Roboto Slab family, which can be used alongside the normal
+      Roboto family and the Roboto Condensed family.
+    '';
+    license = licenses.asl20;
+    platforms = platforms.all;
+    maintainers = [ maintainers.romildo ];
+  };
+}