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/clearlyU/default.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, fetchurl, fonttosfnt, mkfontscale, libfaketime }:
+
+stdenv.mkDerivation rec {
+  pname = "clearlyU";
+  version = "12-1.9";
+
+  src = fetchurl {
+    url = "https://www.math.nmsu.edu/~mleisher/Software/cu/cu${version}.tgz";
+    sha256 = "1xn14jbv3m1khy7ydvad9ydkn7yygdbhjy9wm1v000jzjwr3lv21";
+  };
+
+  nativeBuildInputs = [ fonttosfnt mkfontscale libfaketime ];
+
+  buildPhase = ''
+    # convert bdf fonts to otb
+    for i in *.bdf; do
+      name=$(basename "$i" .bdf)
+      faketime -f "1970-01-01 00:00:01" fonttosfnt -g 2 -m 2 -v -o "$name.otb" "$i"
+    done
+  '';
+
+  installPhase = ''
+    # install otb and bdf fonts
+    fontDir="$out/share/fonts"
+    install -m 644 -D *.bdf *.otb -t "$fontDir"
+    mkfontdir "$fontDir"
+  '';
+
+  meta = with lib; {
+    description = "A Unicode font";
+    license = licenses.mit;
+    maintainers = [ maintainers.raskin ];
+  };
+}