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/undefined-medium/default.nix

@@ -0,0 +1,26 @@
+{ lib, fetchzip }:
+
+fetchzip rec {
+  name = "undefined-medium-1.0";
+
+  url = "https://github.com/andirueckel/undefined-medium/archive/v1.0.zip";
+
+  postFetch = ''
+    mkdir -p $out/share/fonts
+    unzip -j $downloadedFile ${name}/fonts/otf/\*.otf -d $out/share/fonts/opentype
+  '';
+
+  sha256 = "1wa04jzbffshwcxm705yb5wja8wakn8j7fvim1mlih2z1sqw0njk";
+
+  meta = with lib; {
+    homepage = "https://undefined-medium.com/";
+    description = "A pixel grid-based monospace typeface";
+    longDescription = ''
+      undefined medium is a free and open-source pixel grid-based
+      monospace typeface suitable for programming, writing, and
+      whatever else you can think of … it’s pretty undefined.
+    '';
+    license = licenses.ofl;
+    platforms = platforms.all;
+  };
+}